Just installed full version of Windows 8.1. Gigabyte 970A-UD3P mobo, Radeon HD7770 video card, FX-6300 CPU, and 1 8 GB stick of DDR3 1600 RAM. It installed with no problems, but when I get to desktop (or whatever they call it now) after a minute or two, the screen goes black and the computer freezes. I can restart and get back to desktop , but it just crashes again.
I've uninstalled, reformatted, and reinstalled it twice, but no luck,it keeps doing the same thing. Any suggestions as to what could be the problem