XBOX Support offers help for XBOX, Game Pass, and billing questions. Get advice and customer service in the XBOX Support community.

Support for Office 2021 will end on October 13, 2026. Learn more about your options for Office.

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 Office, or you can renew your Microsoft 365 subscription. Having problems with your product key?

Find out how to submit a request for a refund for a purchase of digital XBOX content.

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.

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

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了解如何查找用于激活的 Windows 产品密钥，以及何时改用数字许可证。

You can change your user account picture by either choosing an existing picture or taking a new photo. Here's how. Change your user account picture In the Settings app on your Windows device, select Accounts > Your info or use the following shortcut: