When your camera isn't working in Windows 11, it might be missing drivers after a recent update. It's also possible that your antivirus program is blocking the camera, your privacy settings don't allow camera access for some apps, or there's a problem with the app you want to use.

This article answers common questions about Microsoft Authenticator. Select the headings below to see more information.

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

Learn how Smart charging in Windows can help your battery last longer over time.

There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you, or use our troubleshooter to help guide you.

Learn how to make items on the screen appear larger by using Magnifier in Windows.

Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Learn how to turn on device encryption, or standard BitLocker encryption in Windows.