I solved this problem some time back.
You can search the archives on skunkworks for more details but the below link is a piece of it;
http://lists.my.co.ke/pipermail/skunkworks/2010-December/039434.html
If you have any problems kindly contact me offlist. Read the article to the detail.
Regards,
Wilson.
That sounds like virus activity.Download this torrent -> http://thepiratebay.org/torrent/4094861/Windows_Key_Enterprise_v8.1_Bu_ld_2807_(The_Joker)Reset your admin passwordReboot,login without a password,BACK UP YOUR FILESfire up your antivirus,make sure it has the latest updates,clean your pc
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