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.

Apple Discussions poster wholemilk writs: "I'm trying to delete some files and I get the following message, 'Emptying the Trash cannot be completed because 'weezeer_beverly_ucv (1).mpeg' is locked.

If MMC cannot open the file virtmgmt.msc error on your Windows 11/10, enable Hyper-V or delete the existing MMC folder to fix the issue.