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。

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

With Microsoft Edge, you can turn on sync to browse the web on all your devices, keep your favorites organized, and more.

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

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

The Microsoft Teams web app works for most desktop browsers, including Chrome, Firefox, and Internet Explorer.

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

Subscribed. A Subscribed badge means a Microsoft 365 subscription such as Microsoft 365 Family or Personal is already associated with your account and you can access many of your subscription benefits including installing the desktop apps.. Don't already have Microsoft 365, or you're looking for product details and prices? Buy or try Microsoft 365

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

Learn about what effect closing a Microsoft account might have on your other apps and services.