If you are experiencing macOS 10.13 High Sierra problems, then you’ve come to the right place, as we’ve put together a list of fixes for the most common macOS High Sierra issues.
If you have encountered any macOS High Sierra problems, then this guide should show you how to fix them. Due to how new macOS High Sierra is, we may not have covered all of the problems, but we will continue to update this guide as new issues are reported.
If you’ve encountered a macOS High Sierra problem that we haven’t covered, follow and tweet us and we’ll do what we can to find a solution.
From macOS High Sierra installation problems, to security risks and issues with making apps work, read on to find out how to fix the most common macOS High Sierra problems.
macOS High Sierra won’t download
A common macOS High Sierra problem at the moment is that macOS 10.13 begins to download, but then it pauses along with an error message that says “macOS High Sierra download has failed”.
Another common macOS High Sierra download problem shows the error message: “Installation of macOS could not continue. Installation requires downloading important content. That content can’t be downloaded at this time. Try again later.”
There are a few reasons why you may get this problem. It may be because a lot of people are trying to download macOS High Sierra at the same time. If this is the issue, try again later to see if the download now works.
It may also be worth switching from a Wi-Fi connection to an Ethernet cable, to ensure your internet connection is as reliable as possible.
If you’re still having problems downloading macOS High Sierra, try to find the partially-downloaded macOS 10.13 files and a file named ‘Install macOS 10.13’ on your hard drive. Delete them, then reboot your Mac and try to download macOS High Sierra again.
If you still have a problem downloading macOS High Sierra, open up the App Store, click ‘View My Account’ and see if there is anything in the ‘Unfinished Downloads’ section. You may be able to restart the download from there.
Finally, try logging out of the Store to see if that restarts the download.
macOS High Sierra install problems
If you’re having problems installing macOS High Sierra, first make sure you check out our how to download and install macOS 10.13 High Sierra guide, which will take you through the steps you need to take to safely install the new operating system.
If the macOS High Sierra download completes, but there’s no prompt for the installation to continue, then search in your Mac’s application folder for a file called ‘Install macOS 10.13’. Double-click the file to begin installation.
You also need to make sure that there is enough hard drive space on your Mac, otherwise the macOS High Sierra install will fail.
To fix the macOS High Sierra problem where the installation fails due to low disk space, restart your Mac and press CTL + R while it’s booting to enter the Recover menu. Select ‘Disk boot’ to boot normally, then remove any files you no longer need.
If you’re struggling to free up disk space, look out for hidden Time Machine files that may be taking up large amounts of space.
Once you have freed up enough space, retry the installation.
If macOS High Sierra encounters a problem at the end of installation, and then shows an error message, restart your Mac and press Command + Option + R on your keyboard while the Mac boots to start up the recovery system over the Internet. You can also try Shift + Option + Command + R.
If your Mac continues to fail to boot, follow Apple’s instructions on creating an external Mac startup disk.
It may be worth restarting your Mac in Safe Mode, then trying to install macOS 10.13 High Sierra from there to fix the problem.
Mac won’t start after installing macOS 10.13 High Sierra
If you’ve installed macOS High Sierra, but your Mac won’t start, then restart your Mac and hold down Command, Option, P and R, which will reset the NVRAM (non-volatile RAM).
Hold the keys down until the computer restarts and you hear the startup chime for the second time. Release the keys after you hear the second startup chime. The PRAM will be reset as well.
While in Safe Mode, run Disk Utility to see if that will fix any macOS High Sierra boot problems.
For other ways to fix a Mac that won’t start, check out our guides how to Use OS X boot options to troubleshoot your Mac and how to fix a Mac that won’t start.
macOS 10.13 High Sierra keeps logging you out
Some people have been reporting a problem where macOS High Sierra keeps randomly logging them out of their Mac.
It’s annoying, but the good news is there’s a number of fixes for this High Sierra problem.
First of all, go to Preferences > Security & Privacy > Advanced, and uncheck the box where it says ‘Log out after… minutes of inactivity’.
In the Security & Privacy window, click ‘General’ and uncheck the box ‘Require password after sleep or screen saver begins’. Remember the security implications of this, however.
If macOS High Sierra is logging you out while you’re using Chrome, try opening up the Chrome web browser and going to the settings. At the bottom of the screen click ‘Advanced’, then turn off hardware acceleration.
Apps won’t work in macOS 10.13 High Sierra
Another common macOS High Sierra problem is that some apps no longer work once you’ve upgraded to the new operating system.
This is especially common if you are using older programs. If you find that an app you used to use no long works in macOS 10.13 High Sierra, the first thing you should do is check to make sure have downloaded and installed any recent updates to the software.
You should also check the website of the software. This may contain updates or advice for getting your hardware to run.
If your software is very outdated, it may no longer be compatible with macOS High SIerra. If that’s the case, you should consider buying a newer version, or finding an alternative.
What apps don’t work with macOS 10.13 High Sierra?
Here’s a list of some of the apps that don’t currently work on macOS High Sierra. If you use them, consider upgrading to a newer version.
- Final Cut Pro X 10.3.4: Update to the latest version of Final Cut Pro
- Motion 5.3.2: Update to the latest version of Motion
- Compressor 4.3.2: Update to the latest version of Compression
- Logic Pro X 10.3.1: Update to the latest version of Logic
- MainStage 3.3: Update to the latest version of MainStage
- Adobe Photoshop CS4: Adobe has said it is not making sure this app is working in High Sierra, so best upgrade to the latest version to make sure.
Mac runs slowly after macOS High Sierra upgrade
If your Mac is running noticeably slower after upgrading, there are a number of things you can try to speed up macOS High Sierra and fix any problems that are slowing it down.
First of all, try restarting your Mac to see if that helps. If it doesn’t, force-quit any apps that appear to be taking up a lot of RAM. You can identify these by using Activity Monitor (in /Applications/Utilities) to establish what apps and processes are using up the most CPU or RAM. Its CPU tab lists active processes, with a real-time view of what’s going on.
To force-quit an item, click it in the Activity Monitor list, click the X at the left of the toolbar, then confirm you want to force-quit.
Also delete the cache. Open the Finder window, select ‘Go’ from the top menu and select ‘Go to Folder’.
In the text box that appears type /Library/Caches
Remove the data from inside every folder. Now repeat the process with /Library/Caches (without the symbol). Running the Repair Disk tool from within Disk Utility may also help, and for more solutions check out our guide.
macOS High Sierra battery problems
Has the battery life of your MacBook become shorter since installing macOS High Sierra?
This is a common complaint at the moment, so you can check to see what’s causing the battery drain in macOS High Sierra by opening up the Finder, then going to Applications > Utilities > Activity Monitor > Energy.
From there you’ll see a graph with how much energy the programs you are running are taking up. If it’s a lot, you may want to check to see if there is an update to make the software run better in macOS High Sierra.
You may also want to uninstall the program and use an alternative.
Turning off location services, or stopping unnecessary animations and graphical effects in macOS High SIerra can also help prolong battery life.
For more advice, visit our how to improve your MacBook’s battery guide, and watch our video below.
macOS High Sierra password security problems
We recently reported that there is a major flaw in macOS High Sierra puts your passwords at risk. The exploit was discovered by Patrick Wardle, chief security researcher at Synack, and also affects earlier versions of macOS, and it can be delivered by an unsigned app.
Apple should be working on a fix to this rather serious problem, but for now you should be extra careful when installing apps, and make sure that you only download them from trusted sources such as the App Store. We will update this section when Apple releases an official fix.