Cool, never heard of this... But is this still necessarry with Win10 ? Seeing as though they basically activate the license based on Serial# of MB ? I thought the whole advantage of the Win10 approach was not to have to deal with the reactivation headache ?To provide an alternative that sums up the general method, I've been finding this really useful for doing a clean install of Win10 if you did the free upgrade.
To sum it up, there's an exe called gatherosstate.exe on the windows 10 cd/dvd. You run it, and it backs up your activation state in a Genuineticket.xml file on your desktop. Backup this file
Do a clean install without a key and/or Start the install from within windows, like if you're going to do an upgrade, but choose the option to keep files only. Finish the install and then copy that Genuineticket.xml back into a specific folder outlined in that how to I linked, reboot maybe, and poof, reactivated.
I've done this dozens of times now, it's easy and painless. Just don't expect it to work if you're changing your hardware.