OEM vs. Upgrade

[borat_sagdiyev]

i guess it just detects the serial number

 

[alvino]

actually, the OEM license is fixed to the motherboard. So....to reactivate after upgrading, just tell them that you reformatted and need the key to be reactivated...just do this and you should be good to go whether you did reformat or not. Shhhhh, i didn't tell you guys this *Disappears in fear of being chased by the mods and Microsoft employees*

Run, Forrest, Run!