Q. Do I need a separate activation key for 32- and 64-bit versions of Windows?

A. There aren’t separate keys for 32- and 64-bit Windows. If you have a key for a certain edition of Windows, you can activate either architecture. For example, if I have a key for Windows 7 Ultimate, I can use it to activate either a 32- or 64-bit instance of Windows 7 Ultimate.

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Check out hundreds more useful Q&As like this in John Savill's FAQ for Windows. Also, watch instructional videos made by John at ITTV.net.
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