macOS High Sierra 10.13.6 installer for troubleshooting or recovery
If you are tempted to apply very new macOS updates, it is a good idea to have ‘last known good’ macOS installers to hand. They also help when you need to recover from serious Mac problems.
Even though there is a new version of macOS available, the High Sierra installer is still available from the Mac App Store.
- Download the macOS High Sierra 10.13.6 Installer from the Mac App Store
- Once it opens, quit without installing.
- You will find the installer in the Applications folder.
- Drag the installer to another location on your computer for safekeeping – also to a USB stick that you can use for recovery purposes.