Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

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。

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

Get to know your way around Windows 11, from where to search to how to stay organized. Watch the video and read tips about new features.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

Learn how to use drag and drop to transfer content between your Android device and PC.

Learn how to find and install digital downloads from Microsoft Store. See instructions to download and install software directly purchased from Microsoft.

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

Find out how to stop your screen from flickering after the upgrade to Windows 10.