How to get the activation for Windows 11 pro?

To activate Windows 11 Pro on a PC where it is already installed, a valid license is required, either as a digital license or a product key.

1. Check current activation status:
   • Select Start > Settings > System > Activation.
   • Under Windows, check whether Windows is activated.
2. If there is no license yet (not activated):
   • A Windows 11 Pro license can be obtained in one of these ways:
     • Buy a new device that includes Windows 11 Pro (product key is provided with the device or embedded).
     • Buy Windows 11 Pro (full license or upgrade) from the Microsoft Store app (digital license linked to a Microsoft account).
     • Buy a box copy or digital copy of Windows 11 Pro from an authorized retailer (product key is in the box or confirmation email).
   • If there is no key or license yet and Windows 11 Pro is already installed:
     1. Go to Start > Settings > System > Activation.
     2. Select Go to Store (or Open Store) to open the Microsoft Store app.
     3. Purchase a Windows 11 Pro digital license. Once the purchase completes and the PC is online and signed in with the same Microsoft account, activation should occur automatically.
3. If there is a product key for Windows 11 Pro:
   • Select Start > Settings > System > Activation.
   • Choose Change product key.
   • Enter the 25-character Windows 11 Pro product key from the device packaging, Certificate of Authenticity, card, or confirmation email.
   • Complete activation while connected to the internet.
4. If online activation fails:
   • Use the activation troubleshooter from Settings > System > Activation as described in Activate Windows.
   • If still not successful, activation can be done by phone using the Activate by Phone option in Settings > System > Activation, or via the Product Activation Portal using the information shown on that screen.

References:

• Activate Windows
• Product activation for Windows - online & Microsoft Support Product Activation Portal