Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. There are two methods to which you can activate your …

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow. This article will help you troubleshoot and fix common …

The Product Activation Portal enables activation for a wide range of perpetual Microsoft products and supports both connected and non‑connected devices. This evolution ensures activation remains …

You can also try our guided support in your browser to help with activation issues. I thought this device included Microsoft 365 or a non-subscription version of Office.

The Microsoft 365 activation troubleshooter runs on Windows PCs and can help you identify and fix activation issues with Microsoft 365. Select the button below to start the Microsoft 365 activation …

Product activation validates that the product key has not been used on more personal computers than are permitted by the end-user license agreement. You can activate your product by means of the …

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Select Start > Settings > Update & Security > Activation and then select Troubleshoot. If the troubleshooter can’t activate your PC, contact your PC’s manufacturer.