Hi Minor
My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.
Did you try taking ownership of the folder then attempt to delete it?
Right-click on the McAfee folder, and then click Properties.
Go to Security tab.
Click Advanced, then Change Permissions.
Highlight the user, and click Edit.
Choose This folder, subfolders and files under Applies to:.
Choose Full Control under Basic Permissions.
Hit OK.
Try deleting folder again.
I would also try deleting it in Safe Mode.
Press Windows key + R
Type: msconfig
Hit Enter
Click the Boot tab
Check 'Safe Boot'
Click Apply then OK
Sign in
Attempt the steps above.
If that does not work, download, install TreeSize and use it to delete the folder:
https://www.groovypost.com/howto/map-hardrive-u...