Many people are not sure if I should upgrade my Mac to macOS Mojave. In case of macOS could not be installed, then try to restart your system once. 2011 or earlier) the installer will detect that the “Mac” as too old to run High Sierra. To do this, you need to restart your Mac from macOS Recovery. Problem: MacOS Big Sur won’t install on your machine. When you macOS stuck in macOS could not be installed on your computer, you can boot your Mac into the Recovery Mode to restore from Time Machine. If you face any difficulties while installing the latest macOS on your Mac, there are various reasons as to why macOS could not be installed on your computer. Using macOS Recovery to update your Mac. Compared to the macOS version upgrades of the past few years, macOS Mojave is probably the most changed macOS upgrade. Another method to fix OS X could not be installed on your computer is to update your macOS in Safe Mode. Afterward, reinstall the operating system and try to fix this problem. If you’re having problems installing MacOS Big Sur on your Mac, first ensure that you have a compatible machine (listed below). If you chose Reinstall macOS, wait for your Mac to restart, then go to System Preferences > Software Update and update your Mac to the latest available version. Using the method below, you will be able to upgrade to the latest macOS that is compatible with your Mac. However, if First Aid shows the startup disk is OK, you need to use another method to solve the issue. Another side, Many Mac users feedback that they failed to install Mojave on the computer for some errors. How-To Fix macOS could not be installed issue Fixing the Install issue using Safe Mode on your Macbook. Here’s how you can do it: 1) Hold down the power button to shut down your Mac. Choose the option you want. If you still could not update, you may try this. Better Safe than Sorry. Here is how: Turn off your Mac. Then you can try to reinstall macOS or install the updates again. With a number of possible reasons out there, you want to first find out what is causing the issue and then you can go … This is the most basic of Catalina installation errors; it simply won’t install. If the SMBIOS spoof is too old (i.e. One of the best practices around updating is to make sure that you have taken a backup of the system before doing any troubleshooting. If you use Mail to read and send emails, and it's not working correctly after installing macOS Catalina, read on to find out how you can fix the most common issues. Fix 7: Use Safe Mode. If the errormacOS could not be installed on your computer persists after removing EmuVariableUefi-64.efi, then a bad SMBIOS setting could be what’s behind it. Sometimes, the simplest of the solutions can fix even the most critical issues with macOS installation. After disk repairing, you can go to check whether the issue of Mac OS could not be installed on your computer persists. MacBook Air, macOS High Sierra (10.13.2), Does not install / troubleshooting Posted on Dec 15, 2017 1:14 PM Reply I have this question too (54) I have this question too Me too (54) Me too Fix 3: Restore from Time Machine backup. With backups out of the way, let’s take a look at some of the common and not-so-common macOS Catalina installation issues you may run into: macOS Catalina Won’t Install. Or you can Reinstall macOS.