Adware -- Follow the suggestions in this thread:
http://www.daniweb.com/techtalkforums/thread5690.html
If you need to post a Hijackthis log (explained in that thread), please post it in the Security forum.
Product Key -- All I know is to contact Microsoft. Maybe someone else here will have another idea.
dlh6213
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3,117 posts since Jul 2004
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try some better virus scanner/removers like this one
http://vil.nai.com/vil/stinger/
I don't know about 'better' as they all find different things and it is best to try different ones until a particular problem has been resolved. (There is a link to Stinger in the thread I suggested earlier as well as several other helpful utilities)
dlh6213
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3,117 posts since Jul 2004
Reputation Points: 63
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