If you cannot delete the font files and see Font cannot be deleted because it is in use message, take full control of it, and then delete it.

On the Mac, it can sometimes happen that when you try to uninstall an app, the system reports: “ Can’t delete a Mac app because it’s still open “.

IDG macOS prompts you when you try to delete items using Option plus Finder > Empty Trash. But if macOS thinks a file is in use by an application or the system, even that bypass doesn’t help.

Cannot rename file on Desktop? File Name too long? Action cannot be completed because the file is open in another program? Access is denied in OneDrive? Here's the fix!