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

Learn how to download, install, and configure additional language packs for your version of Windows.

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

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

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

Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.

Learn how to view, manage, and delete cookies in Microsoft Edge.

Learn how to install Windows 7 Service Pack 1 (SP1). Includes info about how to get the download, requirements, and more.

You can choose which apps will start automatically when you start your device.