I have XP Home installed on my daughter's computer but the XP Home CD has a small hairline crack in it making the CD useless. Her Windows install got corrupted and so I am pretty much stuck. If I use my Windows XP Pro CD and her Home CD-Key will it work? I heard once that if you have Windows XP Media Center version but use a XP Pro Cd-Key it will install XP Pro. Would that work here use the XP Pro CD with the XP Home Cd-Key and it will install it as home version, or am I pretty much screwed here and have to get a new copy of XP home?