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Im using a legal copy of Windows x64 on a Dell machine. I Want to virtualize it and run it on another Dell using VMware

Prob: The VM wants a x64 bit key. The host is also running a legal copy of Win X64. How do I determine the key for x64 so I can enter it into VMware. Or, is there another workaround.

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Your key is stored in the Registry. Alot of guides from an initial google search seem to refer using

Use at your own risk.

From some light research newer versions of windows encrypt the keys. You might be able to find it unencrypted since your using windows xp.

A version of the key is also shown in the general tab under system in control panel, but this is probably not what you need.

Your safest option is probably to contact Microsoft.

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You may need to "retire" the physical license in order to keep the licensing "legit," versus having two systems on the same license concurrently. – user48838 Nov 12 '10 at 18:19
+1 for jellybean, it's a great tool – Mark Henderson Feb 2 '11 at 2:41

Use the same key that you used for the Dell.

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