After a little scare with Vundo, resolved by following the anti-malware guide on here - thanks people! I decided to bin Comodo & install Sunbelt as one of the users said it didn't ask too many questions - this was a big problem with Comodo as I'm too much of a biff to know how to answer

Sunbelt kept telling me "internal error" & rolling back (no install).
I tried "online armor" which asked me a whole bunch of questions & said to leave those programs I didn't know for when they came up - result, I couldn't get into Windows, had to safeboot, remove OA & everything started fine after that... now I'm running on windows firewall only & I'm worried I'll catch something!
Help please, what am I doing wrong - or could the computer still be infected somewhere? I ran complete scan Malwarebytes & Superantispyware both in safeboot & normal, & deactivated systemrestore & screensaver etc. & they say I'm now clean, as does Avast!
Thanks for any help you can give - my computing skills are: I am good at following instructions but not good enough to take the initiative.
Cheers!
Langlaise69