How do I activate Windows 10?

Windows 10 can be activated either directly online or alternatively by phone. Below you will find both options.

1. Online Activation

The easiest method is activation via the Internet.

During installation or later in the Windows settings, you will be prompted to enter your product key. Enter the 25-digit license key you received from us and confirm your entry.

With an active internet connection, Windows is usually activated automatically within a few seconds.

2. Phone Activation

If the online activation is unsuccessful, you can also activate your license by phone through the Microsoft Activation Center.

Method 1: Activation via Settings

1. Open the Start menu and click on Settings.
2. Select Update & Security.
3. Click on Activation and then on Change Product Key.
4. Select the option Call Microsoft Activation Center.
5. Select your country or region and click Next.
6. Call the displayed phone number.
7. Provide the installation ID.
8. Then you will receive a confirmation ID, which consists of several groups of numbers.
9. Enter this in the designated fields and complete the activation.

Method 2: Activation with “slui 4”

1. Open Windows Search.
2. Type slui.exe 4.
3. Start the displayed command.
4. Select your country and follow the instructions of the Microsoft Activation Assistant.

After successful confirmation, your Windows installation is fully activated and ready to use.