Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

Use Find my device to locate and lock your lost or stolen Windows devices.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

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。

Summary. Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.

Learn how to use Wi-Fi 7 and Wi-Fi 6 and WPA3 in Windows for better wireless coverage and network security.

Learn how to manage background activity for apps to help save battery power in Windows.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Find out how to change privacy settings for your camera and microphone in Windows.