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

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

Windows 11 and Windows 10: In most cases, Windows 11 and Windows 10 activates automatically using a digital license and doesn’t require you to enter a product key.

The following are some of the most common activation errors with possible solutions for Windows 10. If you're getting an error code that isn't listed on this page, contact customer support.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

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

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

If you make significant hardware changes on your device, such as replacing your motherboard, Windows will no longer find a license that matches your device, and you’ll need to reactivate …

Windows 10 should automatically activate unless you made significant hardware changes (such as replacing the motherboard). For additional troubleshooting steps, please see Get help with …

Unlike other versions of Windows 10, Windows 10 Pro EDU and Windows 10 for Workstations must be activated over the Internet. Until your PC connects to the Internet, you won’t receive …