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

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

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.

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

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 about Windows 11 minimum system requirements and how to assess your upgrade eligibility.

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。

How to stop website notifications in Microsoft Edge. You can remove or block notifications for individual websites in the following ways: Remove or block notifications in Edge settings

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