Cubase 5.1.1 is scanning every plugin on my C:drive

So I was looking for particular plugins in cubase. I went to plugin information to update. These plugins .dll were directly on my C:drive in a folder so i keyed in just C: in the VST p;ugins path under plugin information. Now clicking update, It’s taking forever to scan I then ended the operation from task manager and tried to restart cubase but it now scans my entire c drive (microsoft, corel, everything…) and then fails somewhere along after maybe 1 hour of scanning.
How can I solve this please anybody?