macOS
Shine a spotlight on the solutions to your most irritating Mac problems
macOS quick-fire questions
How do I run Diagnostics on my M1 MacBook Air?
> M1 Macs don’t respond to traditional key combos held during startup. You need to enter Startup Options by pressing and holding the Power button until those start loading. Once the first Startup Options screen appears, press and hold ç+D until your Mac restarts and the Diagnostics Loader menu appears.
How do I remove an old extension?
> To remove old kernel extensions from your Mac, use its uninstaller, or follow the vendor’s instructions. If you can’t do that, manually remove those in the /Library/Extensions folder, but don’t touch copies managed by the system in the StagedExtensions folder.
Trash a former user’s Home folder
Q Although my Mac mini running Catalina only has one user, Time Machine backups and its Users folder contain a Home folder for another user bearing my full name, which isn’t listed in Users & Groups. How can get rid of it?