Anyway this is the command (run from command prompt )to deactivate ur old PC.If you upgraded from a retail copy of Windows 7, Windows 8 or 8.1, the Windows 10 license carries the retail rights from which it was derived – can be transferred. But under Microsoft’s rules, you are only entitled to a one time transfer.
slmgr.vbs /upk
Login using your microsoft account in old PC. Key will get linked to your account. Then login in new PC using same ID. License will get transferred into it.And if yes what is the process?
Even I think the process is this simple for retail keys, but don't know for sure.Login using your microsoft account in old PC. Key will get linked to your account. Then login in new PC using same ID. License will get transferred into it.