Windows 7 Installation Stops at Expanding Files

HELP!!!!!!!!!!!!!!!!!!!!!

Alright, here is my issue. I have a Legit copy of W7, and all my hardware is new. The setup works fairly smoothely until the "Expanding Files" comes up. At which point, it doesn't proceed further than 0%, then after about 15 minutes, its pops up "required files missing." I have tried to remove a stick of ram, relocate ram, differant hard drive, everything disabled in the bios, over clock, under clock, manual set ram........ I even tried two other copies of windows 7, both 64 and 32. I can't figure it out. I need help!!!

Yea, thanks again for the prompt reply. I actually opted to get the MOBO that does not have a built in video card, considering most are sub-par for hard core gaming. So yea, i even disabled all built in usb stuff devices, eSATA devices, SATA3, and Floppy drive. So yea, all that was running was my 2g memory stick (from 4 gigs) and my video card, and my keyboard, and my HDD. So that wasn't it. Like i said i am gonna get some diff memory tonight and try that. if that dont work, XP it is. :)

Metal Dan \m/

Yea, I tried my Legit copy of W7 Pro 64b, and then i tried by buddy's copies of W7 Pro 64 & 32bit. So its not the software. Oh i also tried buying a new DVD drive. Its an IDE style, so their pretty bullett proof.

Okay, will try, I don't really have a good computer machine at home to do that, but i think my laptop can burn. I will give it a shot. Now my RAM packaging does say its specially fitted to work best with i5 and i7, but using the W7 diag program on the ram/memory, it seems to pass. I don't know if that matters. But i will give it a try. But lets keep spitting out other ideas, until this get fixed once and for ALL.

Thanks.

How do i do that, do i just boot from the USB, is the MOBO have the capacity to do that? I have never done that before, i guess i would be a Boot USB Virgin. Ah HA