How can I uninstall the beta? The launcher gives me the following error

Cannot complete the uninstall.

Some of the files from For Honor - Closed Beta could not be deleted. Please try again to delete the files.

Going through Control Panel does not work as well.

Update: Ignore this. I had to reboot after the beta ended. Maybe something was still loaded and running in the background that caused it to be unable to be uninstalled.