If you are facing Mac OS X Combo Update error on your system, this user guide will help you fix it.
Get your PC back to its best with ASR Pro
As a general rule, use a combined macOS and OS X update. The combo update only improves the operating system files; it deals with overwriting all user data. Then run the update to install the latest system version on your Mac. Of course, you can’t use the combo update if the base version for that OS version is installed. For example, OS X 10.10.
How do I update my Mac OS X to the latest version?
Once you’re in recovery mode, click on the Apple logo in the top left corner of each of our screens and make sure your startup drive is pointing to a Mac startup drive of some sort. Now find the macOS Updater and run all updates.
Looks like no one has answered lately. To continue talkingp, just ask a new question.
Why am I getting an error when trying to update my Mac?
The most common reason your Mac won’t update is because it’s running out of space. For example, if you’re upgrading to macOS Big Sur from macOS Sierra and later, the upgrade will require 35.5 GB, but if you’re upgrading from a much newer version, you’ll need 44.5 GB of free disk space.