Hi, Last week I bought a new computer, and I immediatly started having problems getting BSODs when doing anything. The computer came with WIN 7 x32 so I thought it was an OS problem and installed WIN 7 Ultimate x64. I did it about 5 times but the BS kept appearing. Sometimes, they apeared after 2 hours of using the computer, or maybe just when Windows loaded. It happened just after installing Windows (a clean installation, haven't installed any driver or application yet). My computer specs are the followings: Intel Core i5 650 3.2Ghz 4M LGA11 MB ECS S1156 H55H-CM 6GB RAM DDR3 Kingston (3 x 2GB) VGA 1GB MSI R5570 DDR2 HD 500GB PSU CoolerMaster 550W Extreme Plus So I called support and sent the computer to revise and they said it was an OS problem, that they reinstalled it and it worked OK. They said that MEMTEST was OK and gave no error. But in fact, the problem wasn't solved. It happened the same as before. After that I started reading so as to figure out what was causing these BS, and downloaded Microsoft SDK Debugging Tools but the installer gives an error and it quits. I would really appreciate your help with this, I'm sick and tired of having these problems. I called support and they said that if was still going on the same, they could change the components. I don't know what to do. I don't even know if it is a component problem or a conflict with drivers, etc. Here is what Windows says when it loads: I attach some of my dmp files and a picture of the BS. Thanks in advanced. Best regards, Facundo.