Is it possible to get a duplicate windows disk?

xenophone

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Jun 7, 2006
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I need to reinstall Windows xp because I just put in a new mobo and cpu. My comp won't even boot into windows right now. I was told that this is because I switched out my mobo and need to reinstall windows. Problem is I can't find the disk. Is it possible to get another disk without buying a whole new copy of windows. I have the key. I've been searching all over microsofts website to no avail. If anyone knows where or how to do this please help (a link would be most appreciated :p ).