My C drive crashed, needed some of the data, so took it to a data recovery firm. Had also lost my hard copy of the product code (XP), so asked if they could try to recover that. No luck. (For what they charged, they should have provided me with a new drive and a new XP!!) Anyway, they sent me a copy of XP on a non-original disc with the loaner drive they had put my recovered data in. When I told them I didn't believe I could use it as it had been installed on one or more other machines, they said it would be no problem, even with getting MS updates etc. I really don't feel "comfortable" installing it or esp. getting online with that in my machine. Opinions?