Re: Windows blocking downloaded files off the internet
I would just do a reformat. If it happens again after you reformat, then it's hardware related problem most likely. When you do the reinstall of Windows, don't put any other junk on it at first. Just get Windows XP on the hard drive, motherboard drivers, sound. Then install your antivirus software next. After that you can go online and download Nvidia's latest driver and install that. Then perform Microsoft Update. After that, if you have firewall software you want to install, do that.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?