Why it might not load. The computer does not turn on, but the system unit fans are working

Laptop system failure? Computer won't boot? What should you do if your computer beeps when you turn it on? We will look at the answers to these questions in our article.

Let’s immediately try to sort everything out and understand whether the personal computer (hereinafter referred to as PC) and/or monitor does not turn on? Is there a beep when you turn it on or not? There are situations when the PC is absolutely working, i.e. The computer turns on, but there is no picture on the monitor.

There are not many problems with the monitor, so we suggest starting with them.

What to do if the monitor does not turn on?

Pay attention to the monitor's power button. If it does not light up, there is a problem with the screen power supply. However, you should remember that not all monitors have a backlit power button, for example, the Samsung SyncMaster SA10 does not have it.

Here is an algorithm of actions for diagnosing a malfunction:

Press the power button on the monitor; it may be turned off.
Make sure the outlet to which the monitor is connected is working properly. This can be done with an indicator screwdriver, a multimeter, or using any portable electrical device, for example, a charger for a mobile phone, tablet, radio, lamp, etc. Try turning on the monitor from a different outlet.
Check the power cable, there may be a problem with static charge at the ends of the cable or with the cable itself. Pull out the cable and insert it back. Try a different cable.
The problem is in the power supply unit (hereinafter referred to as PSU) of the monitor. Repair (resoldering of capacitors) or replacement of the power supply is required.
The problem is with the power button. The button needs to be replaced.
Swollen capacitors on the monitor board. Resoldering of capacitors is required.

If the monitor's power button blinks, but there is no image, the problem is in the VGA (DVI) signal cable or PC video card.

Check the monitor signal cable (VGA or DVI), the cable may not be seated tightly in the socket. Tighten the cable fixing screws. Try this cable on another screen or install another tested cable on the existing one. Some screens have both VGA and DVI inputs; if one does not work, you need to try another, of course, if you have the appropriate connector on your PC video card.

The problem is with the video card. If the system unit has 2 or more video cards, try moving the VGA or DVI cable to another video card. Move the video card to another slot. Replace the video card with a proven one. Test your graphics card on another PC.

At this point, 90% of all monitor malfunctions are exhausted, and we move on to PC malfunctions.

Computer won't turn on or won't boot?

Before we begin describing PC malfunctions, we should understand the terminology, since seemingly identical words used to describe a malfunction have different meanings. So, the machine does not turn on when, after pressing the computer's power button:

indicator lights do not light up;
You can’t hear the noise of operating cooling coolers (fans);
There is no single sound signal from the built-in speaker, which usually accompanies normal PC startup. Please note that a series of several beeps of varying duration (short/long), on the contrary, indicate a computer malfunction.

The PC does not boot when, after pressing the computer's power button:

indicator lights are constantly on or flashing;
the noise of operating cooling coolers (fans) is heard;
there is a single sound signal from the built-in speaker after the PC starts; The operating system (hereinafter referred to as OS) of the computer does not load, black screen, blue screen of death (BSoD).

What to do if the computer beeps?

When you turn on the PC, if the result is positive for errors, the built-in speaker emits one short beep. If there is a series of beeps when loading (the computer beeps), then the PC has problems. The correspondence of the number of signals, their duration, system errors are different and differ depending on the BIOS manufacturers. When you turn on your PC, pay attention to the BIOS developer (information is indicated on the monitor during boot, and can also be found in the instructions for the motherboard). The most popular BIOS manufacturers are: Asus, Award, AMI, AST, Phoenix, Compaq, DELL.

Interesting! Tables for decoding sound signals can be found in the corresponding section of Wikipedia.

If the computer does not turn on, you need to follow a number of recommendations below:

Make sure that the system unit's power supply is turned on. On the back of the system unit there is a power supply button.

Make sure that the outlet to which the PC is connected is working properly (see the solution to a similar problem for a monitor).
Make sure the PC power cable is in good condition; there may be a problem with static charge at the ends of the cable or with the cable itself. Pull out the cable and insert it back. Try a different cable (for example, from a monitor).
Make sure there is no large amount of dust on the computer boards. Try cleaning your computer using a brush and a vacuum cleaner.

Make sure the computer's power supply is working properly. Measure the voltage at the output of the power supply with a multimeter. Between the black and yellow wires the voltage should be 12V, between the black and red - 5V. Try another power supply of similar power.

Make sure the PC power button is working properly. If necessary, replace the button.
Make sure there are no swollen capacitors on the computer motherboard. If there are any, it is necessary to resolder the capacitors.
BIOS battery problem. Pull out the battery and check the voltage at its contacts, it should be 3V. Deviations to the smaller side lead to unstable PC operation. Try inserting another battery.

Make sure the hard drive is working properly. Check if all connectors (power/SATA/IDE) are installed properly. When using a PC, incl. and when loading it, if you put your hand on the hard drive, you can feel a slight vibration, if this does not happen, there is a high probability of problems with the hard drive connection cables or its malfunction.
Make sure that the RAM (hereinafter referred to as RAM) is in good working order. Try inserting the RAM module into a different slot on the motherboard. If there are several modules, you need to remove them, after which you need to try to insert them into the slots one by one and after each attempt try to turn on the PC. Try replacing the RAM module with a tested, working module.

What to do if the computer does not boot?

As a rule, the computer does not boot due to failures in the operating system or problems with the hard drive. To troubleshoot you need to:

Make sure the hard drive is working properly. Check the hard drive for bad sectors.
Make sure there is no BSoD message on the screen. BSoD or blue screen of death (from English Blue Screen of Death) is the name of a critical error in Microsoft Windows operating systems. If you encounter this type of error, you need to write down the error code and use the search to find the cause of its occurrence.

If everything is fine with the hard drive and there are no BSoD errors on the monitor, then there is a very high probability that there is a problem with the operating system and it will need to be reinstalled.

. This has probably happened to everyone. You look forward to the pleasure of working or playing on the computer on your day off. You spend the whole week making plans. The day off is coming. You turn on the computer, and it writes that the operating system was not found and some other nonsense. Naturally, the first reaction is bewilderment, then shock, and then panic.

What kind of problems do you encounter when working on a computer? Now, now while playing or watching a video, now, now all the time, and then in general the system.

What to do if the operating system does not boot

The main thing is to calm down. All the same, you can’t change anything, and you can easily spoil it. Don't do anything until you analyze the situation. Remember - have you installed any new programs or games? Did the voltage jump in the electrical network? Did you turn off your computer correctly?

Maybe they connected someone else's flash drive? Do you have an antivirus installed? All this could lead to exactly this result. Maybe for these reasons the operating system does not load?

Try going to "". If you were unable to log in to Safe Mode, then do the following:

Recovering using the Recovery Console

If you have very important data on your computer, then first.

Further. Take an installation disk with the Windows XP operating system (any), preferably the one that you have installed. Set the BIOS to boot from a CD or DVD drive (depending on which one you have). Save your BIOS settings and restart your computer. When booting from the installation disk, select " Installing Windows XP " After asking what to do next: install the system or restore - select “ Restore ", i.e. press the "" key on the keyboard R »

and we get into Recovery Console .

When asked which copy of Windows should I write the number into? 1 . But if you have several systems installed, then write the number under which the system you need is indicated. You see, in the picture it says “ 1: C:\ WINDOWS ", so we write the number " 1 ».

Then enter the administrator password. If you have not set a password, then simply click Enter (ENTER). Next on the command line we write chkdsk /r and press ENTER . You have run a hard drive scan with error correction. After checking, enter the word EXIT to exit the recovery console and restart the computer.

If this does not help, then repeat the step 2 , but instead chkdsk /r write down the command fixboot . This command overwrites the boot partition, i.e. makes the active partition bootable.

If the operating system still does not boot, you will most likely have to reinstall it.

The first step is to establish the cause of the malfunction. If the situation is such that the computer turns on, but then the operating system (OS) itself does not load, then naturally you need to dig towards the same OS.

And if the situation is that the computer does not even turn on at all, that is, it shows absolutely no signs of life, then the situation can be much worse.

A few recommendations on what to do if your computer won’t boot!

For the first case (when the computer turns on, but the OS itself does not boot).

Here, as a rule, there is a problem with system files, either they are damaged or completely lost. Try the tips below, all tips are for Windows XP:

Use the “Load last known known configuration (with working parameters)” option. You can use it as follows: after turning on the computer, press the F8 key, a window will appear, and in it select the above-mentioned menu item.
Enter safe mode and try to restore the computer to its previous state. To do this, when booting the computer, press the F8 key (as in the previous paragraph), select “Safe Mode”, if the system boots, go to the following path: Start -> All Programs -> Accessories -> System Tools -> System Restore. And following the wizard's prompts, try to restore an earlier working system.
If the previous methods did not help, then I suggest you familiarize yourself with another option. This option will return your computer to working order with a 99% probability. What do we have to do? You just need to update the old system. To do this, you will need a boot disk with Windows XP. Insert the disc into the DVD-ROM, reboot, it should boot from the CD, for this you need to set the appropriate item in the BIOS, or you can call up the boot option menu with the F12 key when booting the PC and select boot from CD/DVD-ROM, but This method may not be suitable for everyone.
After booting from the CD, select "Install Windows XP" following the prompts. When a window appears notifying you that a previously installed OS has been found, press the R key. This way, the Windows installer will update the existing copy. Wait until it finishes and try to boot normally.

For the second case (when the computer does not turn on at all).

In fact, there can be a lot of reasons for this, and it can sometimes be very difficult to help in absentia in this case. And, as a rule, the reason is a malfunction of some device (motherboard, power supply, RAM, etc.). At home, especially for an inexperienced user, there is simply no way to check the functionality of a device by replacing it with a known working one. But there is a way out, although not 100%.

First, try resetting the BIOS. To do this, you need to remove the battery for a few minutes. Or close the jumper contacts to reset the BIOS. Look for a jumper next to the battery labeled Clear CMOS (possible designations: CCMOS, CL_CMOS, Clear RTC, CRTC, CLRTC, CL_RTC). If it doesn't help, read on.

Second. It is necessary to disconnect ALL devices on the computer, leaving only the motherboard connected. That is, we take out the video card, all RAM slots, disconnect the hard drive and DVD-ROM from the power supply, if there are additional devices (internal modem, sound card, etc.) we take them out, leaving only the motherboard connected to the power supply.

And now we try to turn on the computer, if it turns on, then the problem is in one of the disabled devices. Turn off the computer and try ALTERNATELY connect devices, checking the computer for functionality. First, connect the most important devices (video card, hard drive, RAM), and then the secondary ones.

Thus, if, when installing a device, the computer stops turning on, you can independently determine the faulty device. If the computer does not turn on with one motherboard, then the problem is either with the motherboard itself or with the power supply.

Misunderstanding of the nature of certain computer problems often leads to diagnostic errors, without which qualified repairs are impossible. And the search for a problem should be approached with its accurate description. A malfunction that is described with the words: “when you press the power button, the computer does not turn on, but the fans work” is called a lack of initialization or an initialization error. It should not be confused with “non-powering” - complete inaction when pressing power, since the causes of these two problems are usually different.

Initialization, in this case, is the readiness of the equipment for operation. And if any of the devices critical for starting the PC refuses to start, we will observe a characteristic picture:

after turning on the system unit, a loud noise from the fans is heard (they rotate at a constant high speed);
The keyboard and power indicators come on and do not go out;
the screen remains black.

Nothing else happens.

Causes

According to statistics, the most common source of such a problem is the following:

damage to the BIOS - a program stored in the CMOS flash memory chip on the motherboard, responsible for the initial boot of the PC, as well as for checking and consistency of operation of all its devices at the startup stage;
a failed processor or a malfunction of its power supply system;
inoperability of RAM (random access memory) or incompatibility of installed RAM strips with each other;
malfunction of system logic chips (chipset) on the motherboard, especially often the north bridge.

Other reasons that can also cause such a “clinic” include damage to the components of the motherboard, leading to destabilization of the device’s power supply, a defect in the solder contacts of the microcircuits, a power supply with voltage “drop” along individual lines, a dead CMOS battery, as well as other problems equipment installed on the PC. However, this is less common.

It is also important to understand that this problem is never the result of software glitches in the operating system. Because its download doesn't even start.

Diagnostics

What can a user do if he finds himself in such a situation? Even without special equipment, you can try to solve the problem at home. It is enough to know how to use a screwdriver.

Resetting BIOS settings to factory settings

This is the simplest and, sometimes, very effective way to troubleshoot computer boot problems. If your case is not the most difficult, perhaps it will help.

Turn off the computer's power and remove the system unit cover.
Find the coin cell battery on the motherboard and remove it from the socket.
connect the contacts of the battery socket to each other, for example, using a screwdriver;
reinstall the battery.

There is another option for resetting the BIOS - using a Clear CMOS jumper. It must be removed for 15 - 20 seconds. and move it to two adjacent contacts, and then return it to its place. Sometimes the jumper is called differently: CL_CMOS, CCMOS, CLRTC, CRTC, etc.

After completing these operations, connect the power to the computer and try to turn it on. If the problem is resolved, its cause lies in an incorrect BIOS Setup configuration.

Disable everything unnecessary

If the first method did not help, move on. Let's try to exclude the influence of equipment that is not necessary for a successful start of a PC. To do this, you need to prepare a table covered with insulating material (polyethylene, rubber, plastic, wood, etc.) on which you will assemble the stand.

Let's get started:

turn off the power to the PC and remove the case cover;
remove expansion cards from the slots of the motherboard, disconnect the power and interface cables from it, remove the memory sticks;
remove the motherboard from the case, place it on the table and inspect for artifacts - swollen capacitors, signs of overheating (darkening and deformation of plastic parts), mechanical damage and other defects;
if there are no artifacts, install one memory stick in the slot, connect a video card (if there is no built-in one), a monitor, a previously removed boot hard drive and a power supply;
turn on the power supply to the mains;
use a screwdriver to close the contacts of the power button - Power Switch (can be labeled as ON, PWR_ON, PC_ON) - this action is similar to turning on the computer by pressing this button.

If you see the operating system loading on the monitor, it means that the failure is caused by one of the disconnected devices. Well, if nothing happens besides the rotation of the fans again, let’s try to figure it out in more detail.

Start the system. Carefully touch the processor heatsink and large board components - microcircuits, mosfets, etc. - normally they should be warm. Strong heating (don’t get burned!) indicates a malfunction of the elements (soldering defect, short circuit), and a complete absence of heating (room temperature) most likely indicates that the unit is not receiving supply voltage.
Turn off the power to the PC. Remove the memory stick, remove the oxide layer on its contacts by rubbing it with a school eraser, blow out the slot where it was located, and install it back. Turn on your computer. If the problem is solved, the reason was poor contact between the RAM and the board connector. If it doesn't work, install the bar in another slot - it might be the culprit.

We replace components with known good ones

None of the methods helped? The last thing left that can be done at home is to replace PC devices one by one with working ones, of course, compatible with your system. However, there is a risk of damaging them.

If this is not possible or desirable, or if the described problem occurs on the laptop, the only remaining option is to contact a service center.

I don’t want to be trivial, but the so-called “black screen problem” when loading the operating system after turning on the computer is one of the most common problems faced by owners of both desktop computers and . An operating system that won't boot or a hard drive model doesn't really matter when diagnosing the problem. We will tell you further about how to remove the black screen when loading Windows 7, 10 on a computer and laptop and the reasons for the failure.

This guide will be updated, so do not hesitate to ask questions, I will clarify technical points as best I can and solve your problems with the black screen.

The most likely causes of a black screen on boot

First, you need to list the most common problems that cause a black screen, after which the operating system does not load (in other words, a black screen when you turn on the computer). In rare cases, after loading the user sees not only a black screen, but also a cursor. Causes:

There is a conflict in the operating system, due to which it cannot load the graphical environment normally.
Video driver problem (incompatibility with the current operating system: for example, Windows 10 or Windows 7, up to XP)
The hard drive on your computer or laptop has failed
Windows OS has crashed and does not boot correctly (not in safe mode)
Other hardware problems or system conflicts
Windows can't wake up from sleep state

Start Windows in Safe Mode on your computer

One of the most likely reasons why Windows or another operating system does not boot is a system conflict due to which the OS cannot work correctly after turning on the PC. This may be caused, for example, by the fact that the user installs an incompatible program or drivers that conflict with Windows, and when turning on the laptop/PC, the conflict will make itself known in an unpleasant way - in the form of a black screen. How can I remove it?

Fortunately, Windows developers have provided the ability to log into the operating system in a safe mode, which is designed specifically to eliminate various compatibility issues. By entering safe mode, you can fix all problems on your computer, resolve conflicts, and then boot Windows into normal mode.

So, to enter safe mode on your computer:

Remove from the computer all media and devices that may affect Windows boot (flash drives, disks, etc.)
Restart or turn on your computer, depending on its current state.
To enter Safe Mode, hold down the F8 key while booting. If your PC (laptop or desktop version) has several operating systems, then select the appropriate one from the list and then press F8 again to enter Windows Safe Boot Mode.

Problems with the monitor or components

The reason for the black screen may be obvious: the monitor is not working. This may be due to the fact that the contact between the monitor and the video card is lost or the power cable is damaged/not plugged into the outlet. So be sure to check your connection.

As for the laptop, it is unlikely that the matrix “fell off” from the motherboard. To disable it, you need good reasons: for example, mechanical impact on the display. In this case, you will see that there is obvious damage on the screen: scratches, dead pixels, etc.

In addition to the monitor, we recommend examining the system unit. Check whether the video card is secured in the corresponding socket on the motherboard and whether voltage is supplied to all PC components. This should only be done if you have the skills to assemble/disassemble a computer/laptop.

Resolving conflicts with the video driver, if the computer does not start, a black screen is displayed

An example of a similar problem:

Installed Windows 7, 10, restored to factory settings (native Windows image). But nothing helps. Simply put, when you turn on Windows 10 for the first time, everything is good and everything is fine, but when the drivers are installed on the video card (intel hd3000 and radeon 7600), flickering and a black screen occur, after which recovery and safe mode do not work. That is, Windows 10 dies, after installing the drivers there is a black screen.

If you think that the black screen problem may be due to a conflict of video card drivers on your computer or laptop, then:

In the Secure Boot menu, select "Enable low-resolution video mode."
After successfully logging into your operating system account through Device Manager or Control Panel, remove the conflicting ATI/NVIDIA video driver.
Restart your computer
There may be a conflict between the drivers of the motherboard and video card. You need to try different driver combinations. To avoid reinstalling Windows each time when experimenting, create a restore point and when a black screen appears, roll back to the previous restore point.
If the OS loads correctly in normal mode (the Desktop and Windows cursor appears), then the black screen problem is really related to incorrect behavior after installing the drivers. Go to the video card manufacturer's website and download the latest version to your hard drive, try updating the drivers again.
If the black screen continues to appear, try other solutions to the problem outlined in this guide - for example, uninstalling harmful programs.

We remove programs that conflict and block the OS from loading when turned on

Windows 7 does not start for me. When I turn on the computer, after the words “start Windows,” a black screen appears and the computer does not boot. There is no cursor. I restart the computer, I am given a choice of how to boot Windows, I select normal mode - and everything turns on, sometimes I need to restart several times. Normally it doesn’t turn on at all, I have CCleaner, I use it, the antivirus is Avast, I don’t update any drivers. What could be the problem?

In this case, the sequence of actions to fix the problem will be approximately the same as in the above case. The only thing is that in Windows Safe Mode you need to select the “Enable Safe Mode” option. Next, in this download mode, you need to go to the control panel and in the “Programs and Features” window, sort by application installation date. Analyze what you have installed recently: perhaps conflicting applications are the cause of the black screen and inadequate loading of Windows from the system drive on your computer. One of the best programs for uninstalling applications is the free CCleaner utility.

Disable unnecessary programs and services from Windows startup

There is a wonderful utility called msconfig, which can be used to speed up Windows boot. Although modern computers load the OS quickly, boot optimization can eliminate the black screen for a few seconds.

Start - Run. Enter msconfig in the window.
Services tab - here you can disable unnecessary services.
Startup tab - to enable/disable programs during startup.

In Windows 10, startup items can be disabled through the task manager (Startup tab). The status column displays the status of the application.

We use a restore point to perform a system rollback on the computer and fix problems on the computer

It happens that the cause of the OS failure cannot be identified; removing drivers and programs that cause conflicts does not help: a black screen still appears when the computer boots.

If the computer does not start, use the previous Windows restore point

We use a boot disk (Live CD) to fix errors and diagnose a black screen

When a black screen appears, it is advisable to check your computer and operating system for viruses. This can be done using a "live CD". We recommend using System Restore mode to enter. In addition to the virus scan itself, livecd 4MRescueKit includes modules for data recovery, file backup, and a disk manager like PartitionMagic. Even if this does not help get rid of the black screen of death, you can at least prepare to reinstall the operating system or diagnose the performance of the hard drive in this mode. Live CD fixes problems regardless of the version: it can be both Windows and Linux.

The 4MRescueKit boot kit helps fix software errors on the disk

Black screen during Windows reinstallation

I get a black screen and a cursor, I reinstalled Windows and I still can’t completely reinstall it. After the first reboot, during the installation process, when loading Windows there is a black screen and cursor.

Solution to the problem.

Try using a different installation disk or version of Windows OS.
The reason for the appearance of a black screen and interrupted loading can be either software or hardware. For example, the hard drive contains bad sectors or the USB flash drive or the disk from which Windows is installed is damaged.
Try installing the operating system on a different partition of your hard drive.

Viruses have damaged Windows system files

Many computer viruses can delete or damage important system files. As a result, after loading Windows OS, a black screen appears, although the cursor can still be displayed and respond to your movements. Removing viruses does not always help solve the problem, but you can try.

How to check your hard drive for viruses if? You need a working computer to which you can attach a hard drive. After booting into Windows, install the free Dr Web CureIt antivirus. The CureIt utility contains current virus databases.

Video instruction:

Select the hard drive to scan and launch the scanner.

If, after detecting viruses, a black screen still appears when loading Windows, then you need to look for other reasons.

Burn a recovery flash drive and reinstall Windows

After updating Windows 7 - black screen in any mode: normal, safe - no difference. I tried restoring Windows via the installation disk - to no avail.

Answer. Install Windows 7 from scratch or immediately install Windows 10, thereby killing two birds with one stone: update and solve the problem with the black screen when loading Windows 7.

One of the best programs for burning Windows to a USB flash drive is Rufus. The utility is available in Russian, it is free and, as a rule, burns trouble-free USB flash drives for installing Windows.

The worst thing that can happen: the hard drive fails

Finally, one of the most pessimistic outcomes. If you see a black screen and the cursor is still visible, then the hard drive is working. If there is nothing but a black screen and the OS does not load, then it is quite possible that the computer does not see the hard drive and, accordingly, Windows does not boot. By following the link you can read the manuals that will allow you to diagnose your hard drive and find out whether it is possible to make repairs, restore data by loading the operating system, or is it better to immediately go to the store and purchase a new HDD for your computer or laptop.

Summary. In this guide, I tried to remember and collect from the Internet the most complete list of problems that cause a black screen to appear on a PC. The OS version doesn't really matter, whether it's Windows 8, Windows 10, or the outdated XP. If none of the methods helped, something is unclear, or you have your own ways to solve this problem, please ask questions and add your ideas in the comments.

Answers to readers' questions

I have a black screen after loading Windows, I tried everything, but nothing helps: I turn on the computer - a black screen, and nothing can be done about it. The bottom line is that the black screen appears only after I update the drivers for the video card. If you install standard VGA, then everything starts and works fine.

Before this, I completely reinstalled Windows and it all started somehow unexpectedly with “nothing”. How to fix black screen when loading windows?

Answer. One of the surest ways to resolve OS and driver conflicts on your computer is to go to the website of the manufacturer of your video card and download the latest drivers or stable ones, not in beta, to disk. When downloading, make sure to specify your operating system in the same bit depth (32- or 64-bit). It is also possible that your video card is outdated and not supported by modern operating systems, in particular Windows 10.

If your laptop has a black screen, try updating the drivers

I have Windows 10 installed. An attempt to restore the OS from a system image failed. Now there is a black screen with a cursor flickering in the upper left corner when turned on. All I can do is turn on the computer and enter Bios.

Answer. If you only see a black screen and a cursor, this is a sure sign that the operating system cannot boot (you already understood the problem).

If the Recovery Console or Windows 10 installation disc does not help to roll back the OS to its original state or restore point, create or a new disk for restoring or installing the operating system from scratch.

Not a single folder opened, so I decided to run . A black screen with a cursor appeared on the laptop when turning on / starting Windows OS. I did everything according to your article, but the screen is still black. Help me please.

Answer. If a black screen appears when you start Windows even after recovery, it makes sense to reinstall the operating system on your laptop in another way - for example, in boot mode from a flash drive or disk. Since, according to your description of the problem, the cursor still appears on boot, this is a software error, not a hardware error.

An external box was connected via USB to format ext3 using PartitionMagic. After formatting was completed, the laptop restarted and there was no reboot, and a message appeared on the black screen: error loading operating system... The laptop no longer boots, does not respond to any keys... OS XP... what to do, it’s practically That's it, there is a 2nd PC with Windows 10. In other words, the laptop works - but the screen is black.

Answer. Luckily, your laptop is dealing with a software glitch and not a hardware failure. All you need is to reinstall the Windows operating system. After this, the black screen of death will no longer appear. If your laptop has a disk drive, use a boot disk to restore the OS. Otherwise, it will help you, it’s not difficult to write it down, read the instructions at the link.

I get a black screen when I turn on my computer. Nothing appears on the monitor when I turn on the computer and the system unit is running. I did one trick: pulled out the power, held down the power button for 5 seconds, released it, inserted the power cord, turned on the PC - everything worked fine. After 3 days the same thing happens, but this trick doesn't work. I think this is an incorrect shutdown. I turned it off the last time when some programs were still running (Windows 7 for me) and the Desktop did not appear after loading. What to do if your computer has a black screen?

Answer. You need to approach the problem comprehensively: figure out whether the motherboard and power supply are working correctly in general, whether all the wires are connected to exactly the right power connectors, whether the PC components are tightly connected to the sockets (for example, very often the “black screen of death” is associated with an incorrect connection video cards). Perhaps the problem is not hardware, but software (it’s just not clear from your question whether Windows boots). In this case, reinstalling from a boot disk or restoring in LiveCD mode will help.

Help me understand what's wrong with the PC. I have Windows 7. After the startup starts, a black screen and a cursor appear, then you are asked to select Windows 7 OS and the recommended boot or the normal one. After clicking them, the download starts and throws you back into the same settings. The same problem occurs with loading in safe mode. It does not offer anything further, there is no window to enter explorer.exe.

Answer. If, when you try to boot Windows 7, a black screen and the cursor continues to appear, no matter which mode you selected, most likely the Windows system files have been deleted or changed. A clean reinstallation of the OS or recovery from a Windows 7 boot disk will help. In the boot menu, select “System Restore” and then use the Bootrec.exe utility. Further actions are described.

I have an AMD Radeon video card with 512 MB of memory, it did not support new toys, and I found on the Internet how to increase the memory of the integrated video card via bios. I changed some settings in the BIOS and installed 1 GB of memory, my PC rebooted and I looked at the characteristics of the video card and yes, in fact, the memory has increased. Then I started playing games, about an hour passed and my mouse began to freeze, turn on and off, and then stopped working altogether, I decided to restart the PC and then on my monitor I saw just a black picture with some number in the corner. The computer refused to turn on, after probably half an hour of clicking on the mouse and keyboard, “welcome” appeared on the screen. The PC turned on, but the mouse still did not work, I rebooted again - and again there was a black screen for a very long time when the computer booted. What could this be and how can I get rid of it?

Answer. This is what overclocking a video card leads to. You need to go into the BIOS and reset the settings to factory (default) settings. Perhaps it is because of the BIOS settings that Windows does not start.

You're in luck: with such overclocking of a video card, problems with the temperature of the video card may arise, up to the failure of one of the components (for example, the processor).

In general, you can’t always trust such overclocking instructions. Even if it contains correct information, if you do not have the proper skills, you can get not only a black screen, but also black smoke from the system unit :).

I don’t know why it started, maybe after defragmenting the hard drive, after updating drivers, etc. Every time, before Windows boots, a black screen is displayed for 10 minutes and only after that the welcome window appears. The BIOS definitely loads first, I pressed F2 to check the boot device priority in the BIOS. Also, during a black screen, the console carriage (lower slash) sometimes appears. What can cause a black screen when loading Windows?

Answer. In the BIOS, you can not only set boot priority, but also disable unnecessary devices (for example, a disk drive). However, this will not save the situation.

Perhaps the reason is that when Windows boots, it tries to find the required library or load a non-existent component. Go to the startup menu and disable all unnecessary items. You can also disable unused Windows services via msconfig and remove unnecessary applications on your computer. In general, it is desirable to optimize the operation of the operating system and eliminate conflicts.

You can also analyze the stages of Windows boot using the built-in Event Log Viewer tool. This utility will show how long it takes to load each process when the OS starts.

If time permits, reinstall the OS. On modern computers, reinstallation takes no more than half an hour, and this is a more rational way to solve the black screen problem than spending hours troubleshooting. Sooner or later, any Windows OS develops problems.

Black screen when loading Windows 10. This happened after installing drivers from driverpack. After the system starts, a black screen is displayed, with a cursor visible, and sounds from programs that were opened in the browser (VK). It doesn’t respond to anything, rebooting didn’t help, and it doesn’t enter safe mode either.

Answer. You can use a Windows 10 boot disk or flash drive, select recovery mode and select a rollback point before installing the drivers. The black screen will disappear after loading Windows 10. You can enter Windows safe mode through the Windows installation disk; other OS boot modes are also available there.

If you can insert another video card into the system board, you can try it in the system and remove the drivers manually. Then change the video card to the old one - it should work.

I have Windows 7 on my computer. Everything was fine, but one day after entering the bios password there was no Windows boot icon, and the monitor turned off (went into power-saving mode), the f8 key does not work. I can’t enter bios because the monitor doesn’t work.

Answer. Try resetting the BIOS by removing the battery from the motherboard.

Let's move on. The energy saving mode will not work immediately after the computer starts; rather, the problem is related to one of the components. Check the connection between the video card and the motherboard, the video card and the monitor, etc.

If everything is fine with the BIOS and Windows 7 does not boot, reinstall the OS. Apparently, this is the easiest method to get rid of the black screen.

Windows 7 32bit OS was installed. After changing to Windows 7 64bit, a black screen began to appear. When connected to the TV, everything works, everything is shown, everything is fine. But it doesn’t see through the VGA monitor and the screen is still black.

Answer. Perhaps the 64-bit version did not install drivers for the monitor or video card. Check on the manufacturer's website whether the monitor supports this OS. There is a suspicion that your specific VGA monitor is not supported by this edition of Windows. Try booting Windows in Safe Mode or with the "Enable low resolution video mode (640×480)" option.

I'm using VirtualBox. I installed Linux, worked on it, and then turned off the virtual machine. When I tried to start it, after loading there was a black screen with an underscore at the top left. The laptop itself works, the virtual machine does not.

Answer. If you save the state (Suspend) on the virtual machine, in principle, no problems should arise. If you turn off the virtual machine, then Linux tries to boot when you turn it on. Why a black screen with an underline appears after rebooting Linux is a separate question. Check the key settings of the virtual machine. If the error persists, try installing Linux on Vmware Player.

I have this problem. It's Windows 8.1, I installed a third-party theme, I decided to delete it, I deleted the entire themes folder from Windows, although not all the files could be deleted, that's okay, I rebooted the computer and after selecting the OS I got a black screen and, no, no, the cursor appears and disappears and bottom toolbar, tell me how to get rid of the black screen? There is no restore point, no image, and no disk with the OS.

Answer. If possible, find a bootable image of USB Boot or the like on the Internet, write it to a flash drive. Find the Themes folder on the Internet or on a disk and, with administrator rights, copy it to the previous location from which you deleted the files.

Without an installation disk, it is unlikely that you will be able to get rid of the black screen in any other way.

When I turned on the computer, nothing appeared. The light shows that the camera is working and the computer is turned on, but the screen shows zero. What is the problem - RAM or hard drive? How to check?

Answer. To diagnose the problem, it is advisable to recall previous events. Did your computer show any symptoms of failure (hard drive noise), did you delete system files on the drive, etc. This will help narrow down the list of possible causes. Next, watch at what stage the black screen appears. If the hardware initialization is successful, then the problem is in the operating system - that is, Windows does not start. In this case, we recommend reinstalling the OS from a bootable USB flash drive or disk.