Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. Depending on how you got your copy of Windows 10, activation will use either a digital entitlement or a 25-character product key.
Activating Windows 10 (Version 1511 or higher) using a Windows 7, Windows 8, or Windows 8.1 product key....
Use your OEM Key in Laptop or PC
Please Use windows same windows version
ex:Windows 7 Home Prem OA key Can Activate windows 10 Home,Home N,Home Single Language
After install windows 10
go to Settings --> Update & security --> Activation.
Select Change product key, and then enter the 25-character product key.
Activating Windows 10 (Version 1511 or higher) using a Windows 7, Windows 8, or Windows 8.1 product key....
Use your OEM Key in Laptop or PC
Please Use windows same windows version
ex:Windows 7 Home Prem OA key Can Activate windows 10 Home,Home N,Home Single Language
After install windows 10
go to Settings --> Update & security --> Activation.
Select Change product key, and then enter the 25-character product key.

