Before activating, make sure your PC/Laptop is connected to the Internet!
Click the Start Menu or Press the Windows Logo on the Keyboard, then type “Activation Settings”
On the Activation screen, click “Change Product Key”
Enter the existing Product Key, then click “Next”
The activation process is complete and marked with “Windows is Activated”
Note :
If during Activation you get the message below, then you must open our other post Windows License Activation via Telephone
