How to fix macOS High Sierra errors

How is macOS High Sierra running for you? The system works fine for some users, but there are also those for whom

There are various problems with this version.This happens with major updates for a variety of reasons. In this article, we have collected the most common macOS High Sierra problems and suggested possible solutions.

From users upgraded to macOS HighSierra, a large number of error messages are received: from problems with installing the update itself to fast battery consumption, program errors, strange behavior, reading media, network problems, graphics / display, and overall performance degradation. You may find a solution to your problem below.

Download errorsMacOS High Sierra

Some users cannot even downloadmacOS High Sierra through the Mac App Store. If you have this problem, first of all, check that your Mac is connected to the Internet network at a good speed.

Often the problem can be solved by closing the App Store and reopening it.

  1. Close the Mac App Store.
  2. Open the Mac App Store and try downloading macOS High Sierra again.

It may be worth rebooting the Mac itself, but this is necessary in very rare cases.

Installer problemsMacOS High Sierra

Some write that they cannot download the fullthe macOS High Sierra installer and instead download the 20mb version, which in turn downloads the already complete version during installation. Thus, you do not need to create a USB installation disk for MacOS High Sierra.

To solve this problem, try installing macOS High Sierra using a third-party program.

Installation errorsMacOS High Sierra

When errors occur with the installation, an error message appears, and the solution most often may be to download the installer again and try to start the installation again.

Various errors may pop up. For example, “The path /System/Installation/Packages/OSInstall.mpkg seems to be missing or corrupted. Complete the installer to restart the computer and repeat the operation, "etc.

If you encounter such errors, delete the “Install macOS High Sierra.app” file from the / Applications / folder and download the installer from the Mac App Store again.

Restart your Mac and try installing Mac OS High Sierra again through the installer file. In most cases, this helps.

MacOS High Sierranot is established

When macOS High Sierra installation does not start, the message “macOS High Sierra cannot be installed” appears. Most likely, your Mac just does not support this version of the system.

Can find out,Is your Mac compatible with macOS High Sierra?

InstallationmacOS does not end

Sometimes during installation an error pops up, notifying that it is currently impossible to download important components of the installation, with a proposal to try to install the update again later.

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

Rebooting can sometimes help.

InstallermacOS High Sierra freezes on a black or white screen

Very rarely, 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 by itself, even if it takes several hours.

If the screen is completely black, make sure the brightness is turned on on the Mac. Sometimes the installer darkens the screen for some reason, and you just need to add brightness.

If the installer is completely frozen, you need towill try to install macOS High Sierra again. Restart your Mac and start the installation again, but a little later. If you have a USB installation disk, start the installation from it.

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

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

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

  1. Turn off your Mac, turn it on again, and immediately hold down the OPTION, COMMAND, P, R.
  2. Continue to hold the COMMAND, OPTION, P, R keys until you hear the power-on sound. This usually happens after 15 seconds.

If the Mac does not boot even after resetting NVRAM, you will have to reinstall the system. This can be done using the installation disk or recovery mode.

You can also restart your Mac by holding down the Command + Shift + Option + R keys and reinstalling macOS over the Internet.

APFS doesn't work withFusion Drive or regular drives

The APFS file system is not yet supported by Fusion disks or regular disks, but in the future support will appear with some kind of system update.

If you have macOS High Sierra installed and use Fusion or regular HDDs, be sure to install an update in the future when a new version of the system is released.

MacOS High Sierrafreezes

There are many reports that laptops with macOS High Sierra freeze and do not respond to anything.

Some do not have a cursor or keyboard, butmusic or sounds continue to play. Most often this happens after the video is launched on YouTube, Facebook, etc. In this case, the laptop needs to be rebooted. To avoid a problem in the future, try installing a different browser. This can be Safari, Safari Tech Preview, Chrome, Firefox or Opera.

Sometimes this error occurs due to incompatibility of programs or third-party services. It is necessary to update all programs to the latest version.

If this does not help, you can roll back with macOS High Sierra using Time Machine.

External monitors do not work withMacOS High Sierra

Sometimes after installing macOS High Sierra external monitors stop working. For some, the screen blinks in different colors.

If you encounter this problem, try resetting the SMC.

WindowServer uses a lot of RAM

This issue can be resolved by disabling the transparency effect of Mac OS.

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

Display distortion

Some users appear on screensvarious distortions. This may be due to the new macOS High Sierra graphics engine and other elements of the system, or to the drivers installed on the Mac. Graphics problems are likely to be fixed in future updates.

Mac does not wake up

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

Another way is to reboot or turn off and on the Mac again each time it does not wake up, but this is too inconvenient.

Problems withWi–Fi VMacOS High Sierra10.13

Some users cannot connect to wi-fi networks. Sometimes it helps just turn the function off and on.

  1. Turn off Wi-Fi in the macOS menu.
  2. Reboot the Mac.
  3. Turn on Wi-Fi in 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 are working some programs

Most applications that worked withSierra, should work with High Sierra, but some still have problems. There were error messages in Final Cut Pro, Motion, Indesign, Logic, Compressor, Microsoft Office, Adobe Photoshop, etc. In almost every case, the problem will be fixed by installing the latest version of programs and the system.

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

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

Machas become work slow

If after installing macOS High Sierra your Mac starts to run slower than usual, this is most likely due to the background tasks of Siri, Search, Photo, iCloud, etc.

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

Many Macs, on the contrary, are faster with macOS High Sierra, especially when copying and moving files, and this is due to the new APFS file system.

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

Additional tips

  • Install all available macOS system updates and all programs.
  • Create a new Mac account and use it if the problem goes away.
  • Make a backup of your Mac and reinstall macOS High Sierra from it.
  • Make a copy of Mac and reinstall macOS High Sierra through the USB installation disk.
  • Roll back from macOS High Sierra to a previous version using Time Machine.