Activate Windows 11 by Phone
If the online activation is unsuccessful, you can also conveniently activate Windows 11 by phone.
Step 1
Press the Windows key + R key combination simultaneously.
Then enter the command slui 4 and click OK.
Step 2
A window will open with your Installation ID.
Please take a screenshot or write down the displayed Installation ID. Then call the phone number for the Microsoft Activation Center provided in the window.
Step 3
During the call, you will be asked to enter or provide your Installation ID.
After successful verification, you will receive a Confirmation ID from Microsoft. Enter this in the designated fields and confirm the entry.
Once the process is complete, your Windows 11 license will be successfully activated.
Alternative: Online Activation
Alternatively, you can also activate Windows 11 online. You can find the corresponding instructions in our help section at: