http://blogs.technet.com/backroom/archive/2007/02/23/can-a-system-builder-sell-an-oem-copy-of-windows-vista-without-attaching-it-to-a-peice-hardware.aspxYES! YES! YES you can!!!!!!! As long as you do not open the package AND the end user is assembling their own PC (at that point the user is considered a system builder). As of August 2005, the licensing changed on all of the OEM licensing packs—1, 3, anden-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/backroom/archive/2007/02/23/can-a-system-builder-sell-an-oem-copy-of-windows-vista-without-attaching-it-to-a-peice-hardware.aspx#725427Wed, 04 Apr 2007 06:20:40 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:725427mverweg<p>OK, please clarify for all that is still not clear: Do I understand correctly that we can sell the OEM license pack if a customer fails WGA? (and we did not sell them the machine, it does not have a license attached, and customer wants to purchase a license) If so, can the key be entered with a key change tool like the one provided when the customer goes through the WGA process and purchases a key on-line, or does the OS have to be re-installed? If we apply the key or re-install as a service, can we use a license from a 3-pack since we're doing the 'install'? Does this apply to XP as well as Vista?</p> <p>Thanks for all your work!</p>