You wrote that "windows prepares the files.
Did you move a Windows OS from one machine to another? That rarely works. We have to install Windows when we change motherboards and such so the right drivers and more are setup.
There could be other issues such as heatsink compound, assembly issues or a bum part but the clue you wrote has me ask.
I just build a new pc today with all new parts except for my GPU and DVD drive. The problem is that when I turn it on for about 5 seconds it shuts off without warning. I gets to the part where windows prepares the files.
Corsair CX750 PSU
gigabyte 990FXA-UD3 Motherboard
AMD FX 8150
Corsair H60 for cooling
XFX Radeon HD 6850
I googled the problem and many say it is the PSU that's the problem but this is a brand new 750W psu that must be able to work without a problem. Any suggestions?