I'm trying to delete the file C:\Windows\system32\FlashPlayerCPLApp.cpl because of this link to do a clean Flash Player install. However I am having problems deleting it. It says: cannot delete FlashPlayerCPLApp: Access is denied. Make sure the disk is not full or write-protected and that the file is not currently in use. How do I delete this file???
Use Flash Player Uninstaller for uninstalling it: http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html
If for some reason it doesn't work, GeneQ gave a wonderful solution to a similar problem: http://superuser.com/a/13303/155919
Also, make sure that you have administrative privileges.