Motherboard: Gigabyte GA-MA74GM-S2H Rev 1 CPU: AMD Athlon 64 x2 5000+ Bios:F3A 2 GB Ram Radeon HD2100 Integrated Graphics Downloaded Windows 8.1 Pro using Windows ISO Downloader that I got from MDL. Made Bootable USB using Rufus. When I boot my PC I get the windows logo. That is as far as it goes. I can Run setup exe on the ISO from inside Windows 7 and install 8.1 that way but I cannot clean Install. I can clean Install Windows 7 from the USB. The USB with 8.1 works on my Laptop Thank for any suggestions.