Hello I am new to the site and not a computer wiz by any means. I upgraded from vista to windows 7 ultimate 64. I am using a gateway laptop with 4 gb memory and 320 gb hard drive and here's my problem. When I first upgraded to 7 a friend of a friend said he could do it all for 100 bucks, after 3 months of using windows 7 ult with no problems what so ever I found out it was a pirated copy, so I went out and bought a legit windows 7 ult. I re installed vista to get the pirated copy totally off my cpu then installed win7 again. after I finished re installing all my software I started to get blue screen saying bad pool caller and my cpu would restart. I noticed this after I re installed paint.net, so I removed that. Still getting blue screen, so I got a reg cleaner as advised, it found 144 fixes, but after I would fix them and run it again the same fixes would come back up. So I manually went through my drivers by simply searching for drivers and making sure all were updated, no problems there. So then just started un stalling stuff to see if it was a program causing the problems. It seems to be fine when just surfing the net etc but when I start using programs or install new ones like paint.net or if I use utorrent for anything after about 10-15 minutes I get the blue screen. I believe this to be a software issue and not hardware due to the pirated copy working perfectly(go figure) and my laptop being less then 1 yr old and is never mishandled or dropped. And not sure if this has anything to do with it but I have a built in web cam that is now useless since installing windows 7 as well. Tried to contact Microsoft and the website told me there would be a charge, I was upset because I just bought win7 last week. Any suggestions would be great, and if you need to see any specific logs, please speak to me like 10 yr old and tell me how to get the logs you need. Thank you all in advance.