How to Find Out What Type and Version of Windows XP you are running
Its difficult to tell which version of Windows XP you or someone else is running … Home , Professional or Media Center and if it’s Retail ( Bought in a Box ) , OEM ( Bought with a new computer) or Volume License for large corporations , schools and Microsoft. Here’s a way to find out exactly which version and flavour!
Click on Start, then Run
Type sysdm.cpl and press enter
Under the Registered To Section , there should be a 20 Digit Number
The first Group of 5 Numbers Determines the Type of Windows XP , Match your code for your OS Type
55274 : XP Professional
55276 : XP Professional upgrade
55276 : XP Home
55277 : XP Home
55285 : XP Professional
76487 : XP Media Center Edition 2005
76487 : XP Pro Royalty OEM
76487 : XP Pro volume license (with ‘640′ channel ID)
The second group of numbers displaus your Version , Match your number for your version
Second set:
007 : retail
011 : upgrade
OEM : OEM
270 : Volume License
335 : Retail
640 : Volume License
648 : Academic