Issue
You are trying to delete some Whatfix folders from your device after unistalling the Studio/Player but are unable to do so.
Probable Cause
You may not have the necessary permissions to delete Whatfix folders from the drive in which Whatfix files are saved.
Suggested Solution
Your IT team must've installed Whatfix in your system and only they can delete the folders. Contact your IT admin and request them to delete the Whatfix folders if you are no longer using Whatfix.