Windows Anytime Upgrade (WAU) is an upgrade method offered by Microsoft and selected resellers for users who wish to upgrade their edition of Windows Vista by buying a license. As we talked about in our Windows 7 pricing post, WAU will also be available for Windows 7. Since May 2007, WAU packs have been sold at retail in North America, EMEA, and Asia-Pacific countries. That would suggest that there are WAU retail boxes for Windows 7, right? Correct, as pictured above, Aero XP has managed to grab a few snapshots of them and confirm that the “full version boxes carry the same dimensions as the current Vista boxes.”

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