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 …

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

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

Use the Microsoft 365 activation troubleshooter to resolve Microsoft 365 subscription activation issues. Select the button below to start the activation troubleshooter.

Learn the step for turning Bluetooth on or off in Windows using the Settings app, quick settings, and action center.

You can resolve problems with Microsoft Authenticator by checking the tips in this article and reviewing some of the known errors.

There are three ways you can use Microsoft Authenticator with your accounts: Add Authenticator as a way to verify sign-in. This lets you sign in even if you forget your password. Add …

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.

2025年9月23日 · Home Users If you need help downloading, installing, or activating Windows or Office, need technical support or have any account & billing related questions, select the Get …