I've been having weird problems with XP pro lately. First, McAfee VShield stopped running. It wouldn't start on startup, nor could I load it once in XP.
Then, certain programs started behaving funny. Like if I plug in my digicam, it recognizes it but then gives me some error message about "%1" or something (I forget right now).
Also, weird things are going on like when I choose the "Open With" list on right-click, one of my options is just "Program." Huh?
Anyway, I did a full system scan with updated virus definitions and McAfee found nothing. I uninstalled McAfee and reinstalled to see if I could get VShield to work again. Nope! When I go to certain McAfee options it tells me to reinstall. Tried that a couple times now.
Then I tried to install Norton AntiVirus Corporate Edition 7.6. When it gets to the end of the install, however, it says, "Error 1920.Service DefWatch (DefWatch) failed to start. Verify that you have sufficient privileges to start system services." My XP username has full administration priveleges so I know this isn't the problem.
Is there a diagnostics program I can run that can just tell me if XP is somehow missing components? Like maybe I don't have a virus but some harmful program deleted some needed files?
I would appreciate any help as this is really chapping my ass