To activate over the internet
If you entered the product key while the operating system was installing, the operating system will be activated online automatically after installation.
If you have installed the operating system without entering the product key, please proceed as follows: click on the Windows 10 button Start in the bottom left and then on Settings > Updates and security > Activation.
To activate over the phone
To activate the operating system over the phone, open the command line (Windows key + R and then type cmd). In the command line, enter the command slui 4.
In the menu, select your location and follow the instructions. You can call the automatic telephone system via a toll-free number: 0800 – 018 8354.