Hello and thanks for taking the time to help me out.
I have used the Windows 7 RTM x64 for soe days now with no problem, but as a personal rule I format my computer twice a year. After formatting it the last time, it started crashing constantly while intalling progrmas or accessing my external USB hard drive. The easiest way to crash it is by trying to do the Windows Experience Index test since it freezes the computer when doing the Direct3D 9 assesment, the very first of the process.
I tried using the retail version of Windows 7 x64 and that installation didn't even finish. It just stops when setup is "expanding windows files 55%". Simply freezes.
Then I installed Vista x64. It also fails to install although it finishes the file expansion just fine. After I have inputed the User and Computer names, it reads "Thank You", I click "Next" and then it either restarts or freezes while testing my computer's performance for the first time, which the install process does automatically, unlike the Windows 7 installation.
Finally, I installed the x86 version of Windows 7 RTM and it works perfectly. I have 6 GB of RAM with an Intel i7 920, so running this OS is simply out of the question.
Any ideas as to what the problem might be and how to fix it? I'm thinking RAM, but I am not sure what to do about it or how to test all 6 GB of memory (it's Patriot DDR3 triple-channel, in case anyone needs that info).
Thank you so much in advance.