My boot hard drive went bad according to S.M.A.R.T., so I replaced it after doing a full disk copy. The new drive works fine and everything works BUT there was damage to some Windows (Win 7 Pro 64 bit) files over an unknown period of time, so Windows Restore won't help. I have SP1 installed, so my original install DVD does not work for a repair install. Is there a way short of full purchase to get an install disc that supports SP1? Any other ideas to identify and replace corrupted or missing files?