Matthew_72 :
Ecky :
The OEM key should only ever reactivate on the motherboard it was first activated on. HOWEVER, Microsoft sometimes allows you to call in and do a manual activation over the phone. I have never tried this with Windows 10, but assume it still works.
Are you sure because I gave the tech support guy my key and he said I can use it again to reinstall windows with new mobo
The license agreement for OEM is 'that original motherboard'.
That Tech Support guy saying that is not the activation server that
actually authorizes it.
Try it. See what happens.
If it activates, great.
If it doesn't, call the phone robot and try.
If that fails,
then you talk to a human.