Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.

Learn how to properly shut down your PC with step-by-step instructions from Microsoft Support.

Learn how to troubleshoot and fix problems setting up your email in Outlook.

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

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。

Learn what you can do if you're not receiving account aign-in verification codes.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.