This is becoming EXTREMELY aggravating. I have tried just about everything. I have made a boot USB, but it won't read. I have checked the USB and other discs on another computer... all load like they are supposed to. The only one that does work on the new computer is one Win 7 disc but it hangs at "Starting Windows". I can't even run the win 7 programs (disc or downloaded) from the win 8 desktop because windows "setup has encountered an error". Every time... from every platform. So, annoying.
The only thing I haven't tried is to make a new boot disc and that's simply because I don't have any blank discs lying around. So I guess I need to get one of those. Again, I'll keep you posted.