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 three methods to which you can activate your …

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

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.

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

This article defines product activation and describes when and how to activate a Microsoft product. It also explains how to contact a Microsoft Product Activation Center and contains additional product …

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 …

When you select the option to activate Office by telephone, you may see the following error: Telephone activation is no longer supported for your product.

You can only enter a new product key by going to Settings > Update & Security > Activation and selecting Change product key. Command line tools like slmgr.vbs won’t allow a product key from …

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 …