Its a weird one alright, my laptops clear and I've been on and off pakalert all day.
I've run avg and malware bytes too and nothing...
if you can get it online, run one or more of the online antivirus and anti malware as they bypass the operating system and the problem.
Trends a good one
http://housecall.trendmicro.com/uk/
and eset
http://www.eset.com/us/online-scanner/
bit defender
http://www.bitdefender.com/scanner/online/free.html
Well theres plenty of torrents on line for the windows 7 and activators...if you cant get it to work, Not that I know what they are for or what torrents are for that matter....
Im running them all as we speak just to be on the safe side...
Do you use zone alarm firewall?
I've always used it with minimal problems.
I tried to be normal once.... Worst two minutes of my life...