Windows 7 Help Forums - View Single Post - Will a windows xp pro key work with both x64 and x86 windows xp pro?
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25 May 2012  
gregrocker
Microsoft MVP

 

They're retail if you bought them in a store or online. They're OEM if they came preinstalled on the computer or you bought OEM because you built the computer.

If the sticker was on the machine then it's likely Factory OEM tied to the machine. A retail Product Key is on an insert in the folder which it came in.
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