To activate Windows 11 Pro, follow these steps:

## Online activation
- Click on the Windows start icon and enter "Activation settings" to get to the activation window.
- Click on "Change product key" and enter the 25-digit product key that you can find on the packaging or in the Certificate of Authenticity (COA).
- Click on "Next" and then on "Activate" to finalise the activation. After a few seconds or minutes, you will be notified that the software has been activated with a digital licence.

## Telephone activation
- Press the Windows key and the R key, enter "Slui 4" and press Enter.
- Select your country and make a note of the installation ID and the telephone number of the Microsoft activation hotline.
- Call the hotline, enter the installation ID and receive a confirmation ID. Enter this confirmation ID to activate Windows 11.

Make sure you are using the correct product key that matches your licence of "Windows 11 Pro (1 x, unlimited)".