Unidentified device. Windows does not recognize the USB device. General information about driver problems
Probably every PC user has at least once encountered a problem when, when connecting a flash drive or any other device, the system notifies that “USB is not recognized.”
There are many reasons for such an error, as well as solutions. Let's look at the most effective ones.
Ways to solve the problem
This method is acceptable for Windows 7. Click “Start” right click Click on the “Computer” icon and select “Properties”.
Go to “Device Manager.”
Select “USB Controller” or “Other Devices”. Most likely, the unrecognized device will be located in one of these sections.
If the device is located in “Other devices” and is indicated by a yellow exclamation mark, right-click and select “Update drivers”.
The PC will independently find the necessary program documents on the network. If the problem does not disappear, then we search for drivers manually. To do this, right-click on the device and select “Properties”.
Go to the “Details” tab and select “Equipment ID” from the list.
We highlight the data “VEN_...DEV...” in the first line and try to find the necessary driver on the network.
If previously the device was recognized normally, then click “Properties” and go to the “Driver” tab. If the “Roll Back” button is active, then click it.
Otherwise, select “Delete”.
After completing the second operation in the “Device Manager”, select “Action” and “Update hardware configuration”.
Watching the changes with unidentified device. Reboot the PC.
If this method does not work, in the “Device Manager” expand the “USB Controller” branch and select “Generic USB Hub”.
Right-click on it and select “Properties”.
Go to the “Power Management” tab. Here you need to uncheck “Allow the computer to turn off this device to save power.”
Reboot the PC.
You can also disconnect the USB device from the computer and restart the system. Or connect the equipment to another port. These steps often help solve the problem.
Sometimes users, when trying to connect and further use USB devices (flash drives, external hard disks) receive a system error that states that this USB device not identified. It is difficult to say for sure why such a reaction to the device occurs. Let's try to figure out what is the reason for this behavior operating system and how to fix connection errors.
The USB device is not recognized. Why does this crash occur?
Let's start with the fact that not a single Windows system is immune from short-term glitches, which can lead to such situations.
Indeed, it happens that Windows does not recognize a USB drive or other device, say, a printer or scanner. However, in the actual simple case it has nothing to do with the drivers. System failures themselves, when there may be an increased load on the processor and RAM, may become the root cause of this phenomenon. But sometimes it’s enough just to reconnect the device (for example, remove the flash drive from the port and insert it again). Oddly enough, very often such actions help. Perhaps the device is reconnection will be recognized after restarting the OS. But this is not the most the main problem. In some Windows cases 7 does not recognize USB devices for completely different reasons, which will be discussed further.
Changing ports
One of the factors affecting the operation of any removable or plug-in device is the criterion for using the appropriate interface. For example, if the same drive is designed exclusively to work with USB 3.0, connecting it to a port with USB interface 2.0, you won't achieve anything.
The conclusion is obvious: just change the port you are using (usually computers have several connectors, and the port of the third version of the interface is colored blue inside).
The USB device is not recognized: what to do with the drive drivers?
But the main problem can still be called the lack or incorrect installation of drivers for the device itself, although, as a rule, when it is connected, the system automatically recognizes the device and installs the drivers on its own.
If the device USB Windows 7 is not recognized after the first connection, you can use the “native” disk with drivers (for flash drives, printers, smartphones or tablets, they can be supplied directly upon purchase). If there is no such disk, you don’t even have to try to reinstall or update the drivers in Device Manager (Windows still won’t find anything or will report that the most suitable driver). This is only due to the fact that the search by default will be carried out in its own database, and for some non-standard devices the necessary control software may not be there.
In this case, you should search for a driver on the Internet by visiting the equipment manufacturer’s website. If the device is visible in the Device Manager, but is marked as a non-working device, you can simplify your search using the information about the VEN and DEV identifiers, which can be found on the details tab, setting the equipment ID as the displayed parameter.
USB controller driver questions
But the problem when the USB device is not recognized has also back side medals. The point here is that the root cause may also be a non-working driver of the USB controller itself, due to which the interfaces of the connected device and the port itself may simply be incompatible.
In this case, you need to check the status of the controller in Device Manager. In this case, you need to display all hidden devices (there may be several USB controllers in the system). It is not worth updating drivers or installing them again only for non-working devices. It is better to update them for all system devices that are related to the USB interface.
Typically, this approach helps even when updating software from the system’s own databases. If this does not give the desired effect, you can again use the search using the identifiers described above.
Viruses
Finally, viruses can also cause situations where the system reports that the USB device is not recognized. Indirectly, their impact can affect the condition of drivers and system services. As is already clear, in this case it is necessary to make full check computer for threats using portable scanners, and not standard anti-virus programs.
However the best option it is generally accepted to use disk programs, called Rescue Disk, which have their own boot records, allowing you to use removable media with them on board to start even before loading the operating system itself. It is better to select all disks for scanning, including Windows boot loader, And hidden sections, specifying an in-depth scan. Only in this case is it guaranteed that viruses (if they exist, of course) will be found and neutralized. The advantage of such utilities is the fact that they are able to find even those viruses that are very deeply embedded in RAM.
What else could it be?
Finally, it is worth saying that the connected devices or ports themselves may not work due to damage. What to do in this case? Just try connecting another similar device or using a different port. In principle, these issues were not considered, since the main emphasis was on program problems.
As for printers connected via USB, it is quite possible that the print service is stopped in the system, or the corresponding system Windows component simply disabled. Try restarting the relevant services and rebooting the system and printer. But even here it is important to understand that if the emergence of a situation is associated with viral effects, it may very well be that such actions without pre-check systems will lead to nothing.
As for the rest, as you can already see, the proposed solutions for correcting such failures are quite simple and they are mainly related exclusively to drivers. Therefore, the first step can be taken to update them or reinstallation(You can even remove devices from the system so that when it restarts, it will install the drivers on its own).
Quite often, a typical user is faced with the problem of a malfunctioning mouse. There may be several reasons for this, and it can be difficult to determine a specific one why the computer does not see the mouse. This article discusses the most common problems and breakdowns that arise with “rodents” of different types. price categories And technical features. So let's get started!
Why the computer “does not see” the mouse: how to determine the cause and solve the problem
The failure of any input device can generally be attributed to one of three reasons:
- Broken USB port;
- The device itself is broken (in our case, the mouse);
- Device drivers are not installed or are not working correctly.
In addition to the above, there may be another reason. For example, in additional software or driver incompatibility. But first, let’s look at these three problems, because almost always they lead to the fact that the computer “does not see” the mouse.
USB port is faulty
Before talking about the failure of the mouse itself, it makes sense to check the USB port to which you connect it. Very often the mouse refuses to work because the port is physically broken. By the way, the same applies to the PS/2 port, which is used to connect older models to personal computers. So, first of all, let's check the connector itself.
Visual inspection of the connector
This is what a working USB port looks like
A working USB connector will work with other USB devices. So first of all, try connecting a flash drive or another mouse to it. If the computer “does not see” them either, then the port is broken or faulty.
First check for physical defects. To do this, carefully inspect the connector. It should look something like the photo above. Mainly check if the white strip is cracked (may be black or blue for USB 3.0). If possible, look deeper. You will see six golden contacts. The absence of any of them also indicates a breakdown.
If the USB port visually appears to be working properly, the reason may lie in the software.
Checking the USB port software connection in Windows and Linux
Since the computer does not “see” the mouse, it makes sense to check whether it “sees” the USB port itself. The easiest way to do this is through the BIOS. To enter the BIOS, you need to press a certain key (Del, F12, etc.) in the first few seconds after turning on the computer. You can usually see a prompt telling you which key to press.
Let's go to BIOS key Del
After entering the BIOS, find the menu item (moving using the arrow keys) “Integrated Peripherals” or “Advanced”. Enter it Enter key. On the screen that opens you will see the “USB Configuration” item. Enter it.
Setting up USB in BIOS
The “USB Functions” and “USB Controller” items must have the property. Otherwise, press Enter to switch mode.
Device Manager window
Now let's check USB drivers-ports. To do this in Windows, follow the path: Start -> Control Panel -> Hardware and Sound -> Device Manager. In the window that opens, find the “USB Controllers” item and double-click on it. The presence of a question mark next to any of the rows of the list indicates the absence of a driver. This means it needs to be installed. The driver may be on the disk that came with the motherboard or (for laptops) on the manufacturer’s website. If there are no signs, right-click on each item and select “Update Drivers.”
You can check the connection and USB port drivers on Linux with the command “lspci | grep -i usb". Its result will be a list of USB ports, the number of rows of which should correspond to the number of available connectors on the device. For example:
00:03.0 USB Controller: Silicon Integrated Systems USB 1.1 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems USB 1.1 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems USB 2.0 Controller
So, if none of the above helped or did not occur, then the problem is still in the mouse itself.
Video: installing a USB driver
The mouse itself is broken
If everything is fine with the computer, you need to check the hardware and software of the mouse. Among the main hardware reasons for the malfunction of the input device are:
- Sensor malfunction;
- Broken cable or USB adapter;
Sensor malfunction
Very often the cause of a mouse not working is a broken sensor. It is quite easy to determine, but not always. Most modern optical mice the sensor lights up red. Just turn the mouse over (while it is connected to the computer) and check this fact.
Working sensor
But many manufacturers (especially laser “rodents”) make the sensor invisible, that is, without a characteristic glow. Then it is impossible to manually determine whether the sensor is working. In this case, move on to the next point.
What to do if the cable or USB adapter breaks
If you are using wired mouse, it makes sense to check the wire connecting the device and the computer. Strong bends can cause damage. In addition, check the USB output of the mouse itself (just as you checked the computer’s USB port earlier).
Adapter wireless mouse
If you use a wireless mouse, check its adapter in the same way. If it breaks, the adapter can be replaced with a new one. But only a service center employee can choose the right one. So it's better (and cheaper) to just buy a new mouse.
Problem with the software
If none of the causes of the hardware failure are identified, most likely the problem is in the software. Namely, in the drivers. First of all, if the mouse suddenly fails, restart your computer. Sometimes this helps, but not as often as I would like.
The main problems with driver operation can be classified as follows:
- The driver is not installed;
- The driver is not suitable for your device;
- The driver is out of date;
- Program conflict.
Driver not installed
Logitech Mouse Driver Window Example
The reason may be obvious, but not always. The fact is that not all manufacturers put a driver disc in the box with the mouse. If you don't have it, go to the official website of the mouse brand and look for the driver there. After installation, you may have special program to configure the mouse (as, for example, in the photo). Launch it and follow the internal instructions.
To check whether the mouse driver is installed on Windows, go to Device Manager (the transition process is described above). There, find the item “Mice and other pointing devices.” The absence of question marks indicates correct operation drivers. You can immediately update it, as we did earlier for USB ports. To see installed drivers on Linux, enter the command "lspci".
By the way, most manufacturers load a basic driver into the USB adapter or output, so you don't need to worry about installing it. In this context we're talking about rather about special driver programs.
Not suitable for your device
If you downloaded the driver yourself, there is a high chance that it simply does not suit your device. In this case, it is better to remove it. If the mouse does not work either with or without a driver, contact support on the manufacturer’s website. They will help you choose what you need software.
It is likely that the driver version for your mouse is not compatible with your specific operating system. For example, older programs are not supported on Windows 10, or not all manufacturers produce drivers for Linux-like operating systems. You can find out about compatibility on the manufacturer’s website or on the box with the mouse. IN in this case Only reinstalling the operating system or replacing the mouse will help. Remember that you can return the item to the store up to 14 days after purchase.
Video: installing the driver through the device manager
The driver is out of date
It's unlikely that old version The driver suddenly stopped working, but it is still possible. Just find the update on the manufacturer's website or simply reinstall the driver.
Program conflict
This problem quite often causes incorrect operation many programs. Its essence is that some applications may enter into a “conflict” - prevent each other from executing their code. A conflict most often occurs when two programs are similar. For example, if you installed additional software to control or configure your mouse, it may conflict with the main driver. As a result, the mouse stops working altogether.
On Windows you can easily determine if there is a conflict. To do this, restart your computer in safe mode. Now click “Start” and place the cursor in the “Search programs and files” line. Type "msconfig" and press Enter.
msconfig utility window
On the "Services" tab, check the box next to the words "Do not display Microsoft services" Now uncheck all services in the main window. Restart your computer. If the problem is truly a program conflict, your mouse will work in this mode. Go back to "msconfig" and restore all the markings.
Knowing that the problem is a program conflict, you need to try to remove those applications that you installed recently. If you remember at what point the mouse stopped working, there will be no problems at all.
Video: how to determine what is missing in the software
Other problems
If none of the above helps, it is likely that your mouse is simply dirty. If you have been using it for a long time, take it to service center. It is not recommended to disassemble the mouse yourself, because most latest models have no obvious screws or fastenings.
It is worth noting that if you recently purchased a mouse, there is no need to try to fix it yourself. You can only make the situation worse. While it is under warranty, you have the right to demand assistance from the manufacturer. In addition, the work of a mouse specialist is usually not expensive. So, if in any doubt, it is better to contact the service center.
Computer mouse - precision instrument. Its operation directly depends on various parameters, including accuracy of use. Any mechanical damage often cause breakdowns, so be careful.
Note that most often problems with the mouse are associated with software part. Checking the system for viruses, as well as periodically cleaning out unnecessary “garbage” can help avoid malfunctions not only in the operation of the mouse, but also in the entire computer.
The next time you connect, say, a USB flash drive to your computer or some device with a USB interface, the “USB device not recognized” error may appear on your screen instead of the desired result.
This error appears as a message that appears on the right side of the Start taskbar and states the following information:
One of the USB devices connected to this computer is not working properly and Windows cannot recognize it. For help resolving this issue, click this message.
This message appears immediately after connecting a USB device to your computer. This problem is quite serious since many devices nowadays use a USB interface.
In most cases, the “USB device not recognized” error appears due to the following reasons:
- Incorrect USB port.
- In the operating room Windows system missing certain drivers, which is why there is a conflict between the OS.
- Unstable USB controller.
- USB has gone into temporary shutdown.
- Outdated drivers.
To check the functionality of a device with a USB interface, simply connect it to another PC. If it functions normally there and no “USB device not recognized” error appears, then the problem definitely lies in your computer and its settings.
Solving the “USB device not recognized” error for Windows 7, 8, 8.1, 10
If your computer does not recognize the USB device, but easily connects to other computers, then the problem in the form of the “USB device not recognized” error lies in your PC. In this case, try the following steps:
Method #1 Remove the USB driver through Device Manager
- Right-click on Start and select Device Manager.
- Expand the USB Controllers category and find the USB that your Windows cannot detect.
- Right-click on it and select "Delete".
- Restart your PC and try connecting the USB device.
Method No. 2 Updating the USB driver
For this purpose, you can use either third party software that will update your driver in automatic mode, or go to your device manufacturer’s website and download necessary drivers from there, or simply update the drivers through Device Manager, which we will look at now:
- Go all the way to the undetectable USB in the Task Manager as shown in the previous method.
- Right-click on it and select Update Drivers.
- Wait until the system determines the need for an update. If this occurs, wait until the update process is complete, and then try connecting the USB device to the port again and see if the “USB device not recognized” error appears.
Method #3 Changing the USB Settings
- Right-click on Start and select Control Panel.
- Select "Power Options" and then select the "High Performance" plan.
- Click on the "Configure Power Plan" button next to your power plan.
- Next, click on “Change” Extra options nutrition."
- Expand the USB Settings directory.
- Insert the following parameters into it:
- On battery: Prohibited
- From the network: Prohibited
- Click "Apply" and restart your computer.
We hope the above methods helped you resolve the “USB device not recognized” error.
Modern mice are precise and durable. And yet one day the computer may not respond to mouse movement.
The computer does not see the mouse: causes and troubleshooting methods
USB port is faulty
The reasons for the USB port not working are similar for all PCs running Windows.
Saving on controllers won't do you any good! Use extra food- modern USB-Hubs come with a separate power adapter!
Make sure everything is intact
A port that has been used constantly or carelessly can also break.
Make sure that USB functions active and configured for maximum performanceFor computers Apple Mac the actions are simpler.
Mouse cable is faulty
Short circuit of two or more cable wires with each other, breakage of any of the wires. The USB interface is designed in such a way that all five “cores” - “+”, “-”, “data+” and “data-” and shielding - should not be broken. A break in any of these wires is guaranteed to lead to the inoperability of not only the mouse, but any device in general. It happens that due to the lack of a replacement for a damaged cable, a new mouse is required.
The mouse is damaged
Old-style mice, widespread in the 90s and the first half of the 2000s, were optical-mechanical: in addition to a light and photocell, controller and reader, they had a mechanical drive - a ball, rollers and a slot breaker. Now such mice have become rare - they have become purely optical.
This is what a disassembled mouse looks like Besides faulty cable, mouse malfunctions may be as follows:
Wireless mice are powered by one or two replaceable batteries or accumulators. The following may also be faulty:
If the boards and controllers break down, the mouse definitely needs to be replaced.
Problems with mouse operation at the software level
General information about driver problems
Incompatibility of chipset drivers after replacing the Windows version with a newer one (or, conversely, an older one) may result in a failure to control the mouse. Since the mouse/touchpad/sensor driver is usually included with all modern operating systems except MS-DOS, main reason If the mouse fails, the USB driver is considered to be inoperative: this component is the “Universal Serial Bus Controller” and the “USB Root Hub”. Search the Internet for a version of the chipset driver that is suitable for the version of the operating system you are currently using. However, in Windows versions 8/8.1/10 all main chipset drivers are already components of the system - they do not need to be installed separately.
For Apple computers(e.g. MacBook) mouse and touchpad drivers are also included with MacOS - when updated MacOS versions from, say, Yosemite or El Capitan to Sierra problem The mouse only concerns the lack of computer performance in the latest version of MacOS. But wireless mice like Magic Mouse require separate settings- necessary for their work bluetooth driver for MacOS.
Yes, on Acer netbooks, recommended for working specifically with Windows 7, when Windows installation 8/8.1/10 there was a problem with the netbook hardware - the chipset driver versions for Windows 7 were not suitable: the sensor stopped working (the mouse pointer did not respond), the wireless connection disappeared network connection etc. The best way out was to ignore these outdated drivers- after removing them and restarting Windows, the missing devices worked normally again.
All this suggests that in latest versions operating systems, be it Windows or Mac, graphical shell developers took into account and supported program level Almost all function blocks and PC nodes. This is why timely updates are needed.
Diagnostics of USB ports on a Windows PC
To reset USB controllers found on a Windows PC or laptop, do the following.
Update the list of devices
Remove each one manuallyIf resetting and re-registering USB controllers after restarting Windows did not give anything, then the problem is somewhere else, for example, in the USB configuration.
Diagnose USB ports on a Mac
On MAC computers, to regain control of the USB ports - and with them mouse control - reset the SMC (System Management Controller) settings. For different models PC Mac way reset is different.
On MacBook with Not removable battery follow these steps.
On Mac laptops with a removable battery, do the following.
On Mac Pro, iMac and Mac mini
Diagnostics of a wireless mouse on a Mac computer
Bluetooth mice are widely used. The Apple branded mouse, Magic Mouse, is taken as an example. You also need another mouse that works via USB. To test the Bluetooth connection, do the following:
You need to remove and re-register the Bluetooth mouseAfter reconnecting, Magic Mouse should work again. If the problem recurs, it may be bluetooth device it works incorrectly. Reinstall the Bluetooth driver. If nothing helps, even “clean” MacOS installation- Maybe, bluetooth module or the Magic Mouse itself is faulty. Contact the Apple Service Center to resolve any problems.
Incorrect USB setup in Windows
Automatically turning off USB ports is one of the protective measures against excessive consumption of electricity to power the computer and against excessive overheating. Unused in this moment ports are suspended. Disable this in Windows Power Options.
1
It is not advisable to put the USB port in inactive modeAlthough modern USB controllers supply power and control signals to the interface as soon as any device is connected, the port may not respond in time to the connection of a mouse. From failures in USB operation Neither Linux, nor Windows, nor MacOS are insured at all.
Checking USB controllers in Linux
operating system Linux also allows you to manage USB ports on your PC. Supported different versions USB interface, including 2.0. For example, let's take a graphic Linux shell Gnome Ubuntu.
Enter the required commandsThe lspci command entered in Linux terminal, allows you to display USB devices. For example, let's take three USB controllers installed on a PC running Linux
root@localhost:~:# lspci grep -i usb
00:03.0 USB Controller: Silicon Integrated Systems USB 1.1 Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems USB 1.1 Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems USB 2.0 Controller
Now enter the lsmod command. For example, it will look like this:
root@localhost:~:# lsmod | egrep 'usb|hci|hid|mouse|Module'
Module Size Used by
hid_microsoft 3232 0 usbhid 32992 0
hid_microsoft,usb
hid ohci_hcd 24332 0
ssb 38464 1 ohci_hcd
ehci_hcd 34152 0
Be sure to check if your mouse is among the connected devices.
Other USB software glitches on any PC
Anything can disrupt the operation of USB ports - from incorrect installed drivers to viruses that launch extra copies system processes and overloading your computer's performance. One of the most protected operating systems from any Internet threats is MacOS.
Problems with the mouse on the tablet
Modern tablets Windows based and Android also support mouse operation via Bluetooth or via an OTG USB-microUSB adapter, to which both a classic mouse with a USB cable and a module from wireless mouse. After all, on a large, 10-inch screen, using a mouse along with a keyboard when installing the tablet on special stand already relevant.
For Windows tablets, follow roughly the same steps as on a Windows PC or laptop.
On Android tablets current version operating room Android systems must be system libraries, supporting tablet control with a mouse. If the pointer (or marker) does not appear on the display and there are no signs of controlling the tablet with a mouse, you may need to flash the Android system with official version to “custom” with replacement Android kernels or installation special application to control the tablet with the mouse.
As for the functionality of the microUSB ports, you can’t do without checking. First, check the OTG adapter itself - it is advisable to have at least two working adapters. If suspicion still falls on the microUSB port, connect a keyboard (possibly wireless), 3G/4G modem, flash drive, printer or something like that instead of a mouse. Try connecting two or three devices at once via a USB hub with external power supply. You will hardly notice that the microUSB port is faulty. In this case, you cannot do without specialists from a “mobile” or computer service center.
Video: how to fix a USB port on a laptop
Finding out why the mouse does not work is a task of quick wits, which, however, you can solve yourself, turning to specialists only in case of extreme necessity. You will succeed!
