I have Win 7 Pro bought online during last winter's college student sale. No original CD, but I burned two copies of the download. I'm trying to reinstall Win 7 on a new processor and motherboard. Backed up the old system drive and have been trying a clean install with no success. During file extraction, Windows complains it can't find a file and the installation aborts. This happens using both disks and on three optical drives which I swapped in and out of the computer. The new MB is by Foxconn with an AMD Athlon II dual-core chip. XP installs with no problems, although there is another issue with DEP that I'll ask about elsewhere. Odd that both DVDs would be bad; both were verified when originally burned, and have been tucked away in a disk book since one was used last winter for the original install. In other words, at least one of the two once worked. There are several things I could think of to do in theory, but having never done them before, I'm not sure theory works in practice. For example, if I boot from the install disk and go into the repair console, do I have access to all the drives on the machine? Can I copy the install disk to a hard drive and try to begin the install from there? I guess I can also try booting from an install disk copied to a USB thumb drive? Any other techniques anyone could suggest? I guess it's clear that I really don't think both the disks or all my optical drives are bad. If both disks are bad, though, what options do I have? I haven't been able to google an answer in Microsoft's dense legal prose and it appears that the site where I originally bought the OS through a separate company has been taken down. Thanks for any links or advice.