Gotta use multiple scanners... Sigs have not been nearly powerful enough lately.
Now REPEAT IN ALL USE ACCOUNTS!!! <----VERY IMPORTANT
How about just the admin?

Download HijackThis www.merijn.org (scan and remove any bogus entrys)
I never recommend this step, 'tis very dangerous.

As usual with these tutorials (how many of these do we have now?), the author forgot the most important part of all.
UPDATE WINDOWS