Learn how to verify that your copy of Windows 7 is genuine and hasn't been used on more devices than allowed. Find the online activation method, the automated system phone number, and the live support advocate option.

When you try to activate Windows 7 or Windows Vista, you may receive an error message that is accompanied by an error code and its description. This article will guide you through step-by-step methods to help you resolve your problem.

Learn how to activate Windows 11 using a digital license or a product key. Find out how to check your activation status, link your Microsoft account, and troubleshoot activation issues.

Learn how to troubleshoot and resolve 'Windows can't be activated' error message. Find out the possible reasons and solutions for activation difficulty, such as missing product key, counterfeit software, or hardware changes.

Learn how to fix common activation errors in Windows 11, Windows 10, Windows 8.1, and Windows 7. Find your product key, use the activation troubleshooter, or contact customer support if you need help.

Select the Start button, then select Settings > System > Activation . Open Activation settings. If you're not activated, complete the activation process with the steps you see on the Activation page. If you experience an error while activating, see Get help with Windows activation errors.

A Windows product key is a 25-character code used to activate Windows. It looks like this: Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

To activate Windows using your digital license, in the troubleshooter, select Activate Windows, and then select Activate.

Learn how to find and use a 25-character code to activate Windows 7 or Windows 8.1. Windows 11 and Windows 10 usually activate automatically using a digital license.

Windows 7 and Windows 8.1: Product keys can typically be found in the confirmation email you received after purchasing Windows or in the box Windows came in. Learn more about finding your Windows 7 or Windows 8.1 product key. Find your product key to activate Windows.