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.

Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.

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 …

The new digital workflow provides a more secure, reliable, and user‑friendly activation experience and helps prevent fraud. While the process has been updated, offline activation capabilities remain …

Windows 11 Windows 10 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. If you're unable to activate …

Note If you already own a Microsoft 365 or Office license, then you can sign in to your Microsoft account Services & subscriptions page and install the product (s) that you own.

Now let's link your digital license to your Microsoft account. Click here to go back to the Activation page, select Add an account, enter your Microsoft account and password, then select Sign in. After your …

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install …

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.