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Mac os high sierra problems. Mac won't wake up from sleep mode. MacOS High Sierra freezes

Many are still delaying installation macOS Sierra on their computers, preferring to stay on the more stable and less demanding version of El Capitan. The reasons may be different: concerns about performance, reluctance to load the Mac unnecessary functions or a painful installation experience. Especially for such cases, we have compiled a list of the main problems during the installation and operation of this macOS versions, and also suggested solutions to them.

  1. Freezes and delays when installing macOS Sierra
    Before upgrading to a new operating system, you should take several steps that will protect against such developments or simply ensure the safety of your data. Make a backup, and if there are problems with the installation, repeat the process, first disabling all anti-virus software. Also try booting your computer into safe mode, holding down the Shift button while launching. If possible, try using wired connection instead of Wi-Fi connections, even if safe mode did not ensure a normal installation process.
  2. Not enough space for installation
    Low Volume Users internal storage(for example, owners of early MacBook models Air or MacBook Pro with SSD drives) often complain about the lack of disk space for update. To free up space on your computer, just boot into safe mode, hold Shift at startup and send to trash unnecessary files. You can also transfer them to external storage.
  3. macOS Sierra won't launch


    It also happens that the computer simply refuses to turn on after a seemingly successful update. Then you need to restart your Mac using special combination keys: Command + Option + P + R. This will reset the NVRAM memory.
  4. Mac runs much slower after update


    One of the main concerns of most users who are wary of a new operating system due to concerns about the performance of their own devices. The situation can be solved in several ways: you should start with a banal reboot, then you will have to carefully study the consumption statistics random access memory using the Activity Monitor utility and remove “gluttonous” processes from execution. The solution is to delete the cache - you need to open the standard Finder file manager and click Command + Shift + G- this will open direct access to the desired directory. Select /Library/Caches as the path and delete all the contents of the folders there. The Repair Disk option can also help. Disk utility Utility.
  5. Wi-Fi is slow
    Slowdown wireless connection has also become a hot topic among those wary of switching to Sierra. Removing it usually solves the problem. current parameters connections. You can do this using Finder, using the same shortcut Command + Shift + G and sequentially deleting files at these addresses com.apple.airport.preferences.plistcom.apple.network.identification.plist

    com.apple.wifi.message-tracer.plist

    NetworkInterfaces.plist

    preferences.plist

  6. Time Machine doesn't want to create backups
    This malfunction went so far that even Apple itself paid attention to user complaints and released official instructions regarding what actions to take to resume the operation of this utility. After all, creating backups is really important. First you need to reset the SMC settings (valid for iMac all-in-one PCs). You will have to turn off the device, pull out the power cord, wait 60 seconds, then put the connector back and wait some more. The instructions are strange, but they work.
    Another way is to delete PRAM parameters. To do this procedure, you need to turn off the computer, then take a closer look at the location of the buttons Command + Option + P + R, which you will have to press shortly after the gray screen appears. After a forced reboot normal operation Time Machine should recover.
  7. Mac overheats and constantly noisy coolers
    Those who are accustomed to the “slowness” of an El Capitan computer may be unpleasantly surprised by the behavior of the coolers when upgrading to Sierra. I mean that the computer will begin to make a noticeable noise - and therefore become very hot. There is no single solution to the problem, since this behavior of the components indicates an increased load on the computer. But common cause is the indexing of the internal storage file manager Finder - you can verify that this process is active using Activity Monitor.

It refused to boot. CMD+R Does not help. What should I do?

The start of the working day did not foretell anything bad. A cup of coffee, good mood, the Power key and MacBook displays the following sad picture:

A worrying thought about the safety of the data immediately flashed through my head, current version backup copy of TimeMachine (which was not at hand) and possible loss of information.

Attempt No. 1. Booting into recovery mode

Being an interested user and an avid Mac user, I immediately tried to start the MacBook in recovery mode by holding down the keys CMD+R. Instead of the usual disk utility, the system greeted me with a window with an attempt network recovery.

By selecting home network, I began to wait further development events. After a few minutes, OS X's recovery progress was interrupted error -4403F.

Attempts to start the process again led to exactly the same result. Rebooting the router confirmed that network connection everything is fine.

About an attempt to diagnose, fix possible mistakes hard drive or simply reinstalling the system was now out of the question. Section with Recovery HD, in which the tools for restoration are stored, ordered to live long.

Attempt No. 2. Resetting PRAM and NVRAM

Mac computers were created by highly qualified engineers, so the correct organization of the entire system and the presence of “hidden hardware reserves” allows you to avoid a number of interruptions in its operation. One of these reserves is memory sections PRAM And NVRAM. It stores settings data that is not reset even after the computer is disconnected from power. To revive the fallen system, a decision was made reset PRAM and NVRAM settings.

1. Turn on the Mac.
2. After appearance white screen quickly press the key combination CMD + Option + P + R.
3. Hold until the Mac reboots again and the Mac greets the sound.

PRAM and NVRAM reset completed.

Although they say that hope dies last, it, lifeless and barely alive, continued to lurk in my mind. Resetting PRAM and NVRAM did not affect the error when loading the system. The MacBook continued to test my nerves.

Attempt No. 3. Reset SMS

Having become accustomed to storing all necessary data “in the cloud” or on removable media, the most simple solution global problems There was always a reinstallation of the system from scratch. This case was special. I needed data stored in memory and I needed a working Mac today.

IN Mac environment there is a so-called system management controller SMC. The stability of the entire system depends on the reliability of its operation. Resetting SMC settings can cure a number of problems like:

      - constantly high speed cooler rotation even at minimum load;
      — freezes when the system goes into sleep mode;
    — errors related to the operation of additional peripherals or external monitors, as well as correcting system boot problems.

To reset the SMC, follow these steps:

Laptops with built-in batteries

1. Turn off your MacBook and plug in the power adapter.
2. Press and hold the keys at the same time Shit + Control + Option + Power and hold until the MagSafe adapter indicator changes color.
3. Release all keys and press the key again Power.

Laptops with removable batteries (older models)

1. Turn off your MacBook and unplug the power adapter.
2. Remove the battery from the laptop.
3. Hold down the key Power And hold for at least 5 seconds.
4. Release Power, insert the battery and connect the power adapter. Turn on your laptop.

Desktops (iMac, Mac mini, Mac Pro)

1. Completely disconnect your computer from mains power.
2. Wait at least 30 seconds.
3. Connect the power and wait another 5-10 seconds and then turn on the computer.

The above actions can become really effective and the system will start. In my case, a miracle did not happen.

Attempt No. 4. Recovery using a bootable USB flash drive

An attempt to revive the system using the above actions was unsuccessful. The only option left was to reinstall OS X using bootable flash drive. For this step you will need:

  • another computer running operating system OS X;
  • Flash drive with a size of at least 8 GB.

Preparing a flash drive

1. In the store Mac applications App Store You will need to download the OS X Yosemite distribution.
2. To create a bootable USB flash drive, download the DiskMaker X utility (distributed for free). You will need it to deploy the distribution.
3. Format the flash drive using Disk Utility in Mac OS Extended (Journaled).

4. After the distribution has finished downloading, cancel the proposed installation and run the utility DiskMaker X.
5. Choose a system Yosemite (10.10). The utility will detect the distribution in the Applications folder. Click Use this copy(use this copy).

6. Select the drive installed in the USB port and agree to the warning about complete removal all data present on the flash drive.

7. The process of mounting the distribution kit with OS X Yosemite to the drive will begin.

The copying process takes about 10-20 minutes and depends on the writing speed of the USB flash drive. During mounting, the screen may periodically open dialog boxes and folders. Do not pay attention.

Once the OS X Yosemite image has successfully deployed, remove the drive.

System installation
1. Insert the flash drive into the USB port of the “problem Mac”, press the key Power and hold down the key Alt.
2. In the list of available partitions for downloading, select OS X Base System. Please note that there is no Recovery partition..

3. The Mac will boot into recovery mode. After selecting the main system language, the installation menu will open. IN top menu you will find standard list utilities

Take advantage disk utility and try checking your access rights first system partition and correct possible errors. If after rebooting the system still refuses to boot, you will need to separate a partition of at least 20 GB in size for installation purposes new system. Detailed instructions on disk partitioning you will find here.

From the same menu, you can either begin the process of installing the system on a newly created partition, or restore the system using a TimeMachine backup (see Working with TimeMachine).

CAREFULLY! Be careful when choosing the installation partition. The installation must be carried out not on top of the old partition, but on a newly created one.

After installation is complete, you will have access to all data located on the “corrupted” partition with old version systems.

If you cannot create an additional disk partition

If for any reason you were unable to create additional section disk to install a new version of OS X, and saving the data remaining on the damaged partition is still a priority, there is the option of installing OS X using a previously created bootable USB flash drive on an external drive.

IN disk utility format the partition scheme to GUID Partition (Attention! All data on the external hard drive will be erased) and select formatting type Mac OS Extended (Journaled).

Installing the system on an external drive otherwise completely duplicates the method described above. Booting from external hard drive you will have access to the remaining old system data.

Let's look at the reasons why your MacBook won't boot after updating in this article. Mac systems OS. Here it is obvious software errors, which could have happened due to the fault of Apple itself, or incorrect actions on your part (settings and update process).

In some cases, the matter may be complicated by failure internal modules due to overheating. In such cases, it is better to contact service center in your own city.

This article is suitable for all MacBook Pro and Air models released in different years. There may be some differences in architecture or description Mac versions OS.

Reasons why your MacBook won't boot after an update

The device can behave in a similar way due to a number of various errors. Let's look at them:

  • Installing updates to the Mac OS operating system (or the laptop installed it on its own if the auto-update option is activated).
  • When you restarted (turned on) your device, a black screen was displayed instead of the loading bar.
  • Looking at this black screen, you heard 3 long sounds similar to “beep-beep-beep”, which were repeated at intervals of 5 seconds.

The official Apple website has symptoms and descriptions of this error. Three consecutive signals that repeat with a five-second pause indicate that the RAM could not pass the data integrity check.

It turns out that the problem is related to RAM devices. Judging by user reports, most often this error give out the following devices: MacBook Pro a1278, a1260, MacBook Air a1466. Let's look at ways to solve the problem.

Resetting SMC parameters

If the MacBook does not turn on and beeps, then this is a signal of an error with the RAM, which can be solved by resetting the SMC (System Management Controller) parameters. Follow one of the algorithms, depending on the type of device you are using.

MacBook with non-removable battery

MacBook with removable battery

Such devices are rare, but let’s consider the algorithm of actions anyway:


Mac Pro, Mac mini, iMac

In this situation, resetting the system management controller parameters is even easier:

  • Turn on the device. If it does not respond, turn it off by pressing the power button and holding it for 10 seconds.
  • Unplug the power cord from the outlet or device.
  • We wait 15 seconds.
  • Reconnect the power cord.
  • We wait another 5 seconds, then turn it on Mac regular way by pressing the power button.

Rearranging RAM

This method is suitable for those Mac devices, where the RAM can be replaced, and it is not soldered to system board, as is now done on most models. The algorithm of actions is as follows:


To solve the problem where your MacBook won't boot after an update, you can boot into Safe Mode. This way you can identify various software errors in the system. IN this mode The system kernel is loaded from important functions.

When the device boots into safe mode, the file system is checked for errors, and they are eliminated if possible. Therefore, booting your Mac into Safe Mode and then performing a graceful soft reboot may resolve the issues.

To boot your Mac into Safe Mode, when you turn on your computer, press and hold the Shift key on your keyboard until the boot indicator bar appears. In Safe Mode, MacOS boot time takes significantly longer than standard download systems.

Mac may not boot due to problems with hard drive. The most the easy way check HDD will use Disk Utility.

First, turn off the device. To launch Disk Utility, you need to go to OS X recovery mode. When you turn on the device, hold down the “Command + R” keys.

If all goes well you will be taken to the MAC OS X Utilities screen like the screenshot below. There you need to click on “ Disk Utility"(Disk Utility), then click on the name of the built-in hard drive, which is located on the left side of the screen and start the verification process by selecting Verify Disk at the bottom right of the screen. We are waiting for the verification to complete.

Increase

If any problems are found, you will be prompted to correct them. To confirm your intentions, click on “Repair Disk”. Then reboot the MacBook again.

External drive mode

Let's start the mode external drive to access information on your MacBook.

If your Mac freezes during operation and is not responding, this should help. forced reboot. To do this, press and hold the power button until Mac screen does not go out, and then turn on the computer as usual.

Attention! With this shutdown, unsaved data in applications will most likely be lost.

2. Removing removable media

Eject (⏏) or F12

When a Mac with an optical drive and a disk inside crashes, the system may fail to boot from it and may freeze. To eject media, press the ⏏ (Eject) or F12 button on your keyboard, or press and hold the mouse or trackpad button.

3. Selecting a boot disk

If your Mac has multiple drives installed and you can't boot the system from the default drive, you can call up the boot drive selection dialog and manually select the desired media. To do this, press and hold the ⌥ (Option) key immediately after turning on the computer.

4. Boot from CD or DVD

In a similar way you can give Mac command boot from disk from built-in or external optical drive. In this case, press and hold the C key on your keyboard.

5. Download from server

⌥N (Option + N)

When the local one has a NetBoot server on which boot image system, you can try to start your Mac using it. To do this, press and hold the key combination ⌥N (Option + N).

On computers with Apple processor T2 this download method does not work.

6. Run in external disk mode

If you don’t want to start your Mac, you can switch it to external drive mode and copy important files, connecting to another computer via a FireWire, Thunderbolt or USB-C cable. To start in this mode, press and hold the T key while turning on.

7. Run in detailed logging mode

⌘V (Command + V)

By default, macOS does not display a detailed startup log, showing only a loading bar. If problems arise, you can enable a detailed log, which will help you understand at what stage of the download the error occurs. To do this, when turning on, press the combination ⌘V (Command + V).

8. Start in Safe Mode

When Mac won't boot into normal mode, it's worth trying to start safe mode. It checks the disk and turns on only the basic components of the system, which allows you to determine which specific programs or services are causing errors. To boot into Safe Mode, press and hold the ⇧ (Shift) key.

9. Single-player mode

⌘S (Command + S)

This mode launches the system in an even more stripped-down version - only command line. Nevertheless, with its help, specialists will be able to diagnose and correct errors if they exist. To launch in single-user mode, press the key combination ⌘S (Command + S).

10. Run diagnostics

macOS has built-in hardware diagnostic software that can help identify hardware problems. To run diagnostics, press and hold the D key.

11. Running network diagnostics

⌥D (Option + D)

If boot disk is damaged, you will not be able to run the diagnostic test. In such cases it will help network diagnostics, which allows you to run the test over the Internet. To do this, press the combination ⌥D (Option + D)

12. Recovery mode

⌘R (Command + R)

When you boot into recovery mode, you can access Disk Utility, reinstall macOS, and restore data from a backup. To enter recovery mode, press and hold ⌘R (Command + R).

If your Mac has a firmware password, you will need to enter it.

13. Network recovery mode

⌥⌘R (Option + Command + R)

A mode similar to the previous one, which, if the Internet is available, allows you to reinstall macOS by downloading the system distribution directly from Apple servers. To use it, press ⌥⌘R (Option + Command + R).

14. Reset NVRAM or PRAM

⌥⌘PR (Option + Command + P + R)

If you're having problems with your display, speakers, cooling fans, or other Mac components, you can try resetting your NVRAM or PRAM to resolve them. To do this, press and hold the ⌥⌘PR (Option + Command + P + R) keys at startup.

If your Mac has a firmware password set, this method will not work.

15. Reset SMC

A more radical way to reset is to return to standard parameters system management controller (SMC). It is used if the previous method did not help. Depending on your Mac model, resetting the SMC works differently.

On desktop computers You need to turn off your Mac, unplug the power cable and wait 15 seconds. Then reconnect the cable, wait five seconds and press the power button to turn on.

On laptops with removable battery You need to turn off your Mac, remove the battery, and then press and hold the power button for five seconds. After this, you need to install the battery and press the button to turn it on.

On laptops with non-removable battery You need to turn off the Mac and simultaneously press and hold the power button for ten seconds Shift buttons+ Command + Option. After this, release all keys and press the power button to turn on.

On a MacBook Pro with Touch ID, the sensor button is also the power button.

Sometimes during installation an error pops up indicating that the this moment impossible to download important components installation, with a suggestion to try to install the update again later.

The solution to this problem is easy: follow the advice and try to install the update later.

InstallermacOS High Sierra Stuck on black or white screen

It is very rare that the macOS High Sierra installer freezes on a completely black or white screen.

In this case, you first need to wait, and the error may disappear on its own, even if it takes several hours.

If the screen is completely black, check that the brightness is turned on on your Mac. Sometimes the installer darkens the screen for some reason and you just need to turn up the brightness.

If the installer permanently freezes, you will need to try installing macOS High Sierra again. Restart your Mac and start the installation again, but a little later. If you have an installation USB disk, run the installation from it.

If the entire laptop freezes, you need to enter recovery mode by restarting the Mac and holding down Command+R. After that, try installing the update again.

High Sierra does not install, the system does not boot at all

This happens in rare cases. When the update does not install and the system does not boot, the gray screen. In this case, you need to reinstall system support, but first you need to reset NVRAM/PRAM.

  1. Turn off your Mac, turn it on again, and immediately press and hold OPTION keys,COMMAND,P,R.
  2. Keep holding on COMMAND keys, OPTION, P, R until you hear the power-up sound. This usually happens within 15 seconds.

If your Mac still won't boot after resetting the NVRAM, you'll have to reinstall the system. This can be done using installation disk or recovery mode.

You can also restart your Mac by holding down Command+Shift+Option+R and reinstalling macOS online.

APFS doesn't work withFusion Drive or regular disks

File APFS system not supported yet Fusion wheels or regular disks, but in the future support will appear with some kind of system update.

If you have macOS High Sierra and are using Fusion drives or regular HDD, in the future be sure to install the update when it comes out a new version systems.

MacOS High Sierrafreezes

There are many reports of laptops running macOS High Sierra freezing and not responding to anything.

For some, the cursor or keyboard does not work, but the music or sounds continue to play. Most often this happens after launching a video on YouTube, Facebook, etc. In this case, the laptop needs to be restarted. To avoid this problem in the future, try installing a different browser. This could be Safari, Safari Tech Preview, Chrome, Firefox or Opera.

Sometimes this error occurs due to program incompatibility or third party services. All programs need to be updated to latest version.

External monitors do not work withMacOS High Sierra

Sometimes after macOS installations High Sierra stop working external monitors. For some, the screen flashes different colors.

If you encounter this problem, try resetting the SMC.

WindowServer uses a lot of RAM

This problem can be resolved by turning off the Mac OS transparency effect.

Install all available macOS updates High Sierra and other graphics related drivers.

Display distortion

Some users experience various distortions on their screens. This could be due to the new macOS High Sierra graphics engine and other system elements, or to the drivers installed on your Mac. Graphics issues will most likely be fixed in future updates.

Mac won't wake up from sleep mode

If this problem occurs, you need to reset the SMC or VRAM. Apple Support advises users to simply reinstall macOS through recovery mode.

Another option is to restart or turn off and turn on your Mac every time it doesn't wake up, but this is too inconvenient.

Problems withWi– Fi VMacOS High Sierra 10.13

Some users are unable to connect to wi-fi networks. Sometimes it helps to simply turn the function off and on.

  1. Turn off Wi-Fi in the macOS menu.
  2. Restart your Mac.
  3. Turn on Wi-Fi from the macOS menu.

There are also messages about the inability to connect to networks with a hidden SSID. In this case, you need to open the SSID (router name) in the router settings.

Not work some programs

Most applications that work with Sierra should work with High Sierra, but some still have problems. Errors reported in Final Cut Pro, Motion, Indesign, Logic, Compressor, Microsoft Office, Adobe Photoshop etc. In almost every case, installing the latest version of programs and systems will fix the problem.

It is best to update programs in Mac App Store on the Updates tab or through the programs themselves.

Also check that the program is compatible with macOS High Sierra.

Macbecame work slowly

If your Mac is running slower than usual after installing macOS High Sierra, it's most likely due to background tasks Siri, Search, Photos, iCloud, etc.

Try simply leaving the laptop on for a while and letting it complete all background tasks.

In contrast, many Macs run faster with macOS High Sierra, especially when copying and moving files, and this is due to the new file system APFS.

If the work remains slow even after waiting, it is worth checking how much RAM specific programs and services consume using the System Monitoring program. Sometimes the system is slowed down by some programs that consume a lot of resources.