Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

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。

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

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

With online threats getting more advanced day by day, it is important to prioritize the safety of your web browsing. Microsoft Edge offers several features and practices that can enhance your online security and protect your personal information.

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

Windows 10 and 11 contain a large set of emojis. To insert one: Put your cursor where you want the emoji.

Do you need some help installing Quick Assist? For the best experience, download and install the new version of the Quick Assist app from Microsoft Store. If you have problems installing Quick Assist, here are some steps to try to get it installed and working properly.

Use OneDrive as a cloud backup to share your files and folders with others. Learn how to control permissions, allow editing, or set expiration dates.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.