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.

Windows won't let you delete, move, or rename a file if a program is using it. Frustratingly, it also won't tell you which program is using the file so that you can solve the problem.

Wondering what really happens when you delete a file on Windows? Learn how deletion works, where files go, and if you can recover them.

What if I permanently delete a file in Windows 10 or 11? If you permanently delete a file (press Shift+Del to do so) or empty the entire Recycle Bin, recovering a file is trickier but still doable.