Tom's Hardware > Forum > Windows XP > Configuration & Customize > Upgrade from xp home to xp pro
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i am currently using xp home and i want to upgrade to xp pro.

a little while ago i installed xp pro on vmware to try something out, then i deleted it from vmware.

when i want to upgrade my system will i have to use the product license key, since i already used it before? if i do need to use it will i be able to use the some one again since i am using it on the same system?

will i loose any of my files on my computer? some people are saying that i should backup everything up just in case and some are saying i don't need to.

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Tom's Hardware > Forum > Windows XP > Configuration & Customize > Upgrade from xp home to xp pro
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