Windows 7 I'll let you know, my video cuts out..

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I've heard this is a very common problem, and I do have an Nvidia chipset, but whilst installing Win7, my video will cut out during the "Expanding Files" stage, at 30%. I was part of another Win7 forum, but those people over there couldn't distinguish their ass from a hole in the ground, so I joined this lovely community, hoping someone here could provide with a solution.

Help is more than greatly appreciated.