My PC just had nasty problems and caused a host of issues including turning off Microsoft updates, made removing any programs impossible in Add/Remove amongst a host of other issues.

I purged my PC of a whole bunch uninvited guests last night, who came in and took over!

The only way I got back control was to download TrojanHunter Scanner. It's free for a 30 day trial and found trouble my other two virus scanners overlooked. My PC is like new now!