said by Rob850: Run adware and spybot after the MS scan. It would be very surprising to see what's left behind.
Actually, it should be run Giant
after running Ad-aware and Spybot S&D, and see what's left behind. Lots, you'll find out. Set it to scan everything...takes a while but you will see how insidious spyware really is. Wait until you find the deep embedded keystroke loggers that have been on your system for a loooong time.
That will cheer you up...not!
Giant is a very robust product, and very much more thorough than either of the other two. MS would do good not to screw with the product too much, and leave well enough alone.
Google for test results comparing all of them.
I believe there is a test that is referenced on this site.
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A is A 
