了解如何更改 Windows 中显示器的刷新率，以确定在屏幕上显示运动的平滑程度。

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

Learn how to get Microsoft Store updates for your apps and games. Download the latest versions of Microsoft Store apps and games.

Go to Settings > Apps > Apps & features to change whether you're shown app recommendations when trying to install apps from outside the Store.

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

Learn how to create a OneDrive backup on your PC. Set up OneDrive PC folder backup to access, manage, stop, or fix problems with PC folder backup.

The new Microsoft Edge helps you browse, search, shop online, and more. Like all modern browsers, Microsoft Edge lets you collect and store specific data on your device, like cookies, and lets you send information to us, like browsing history, to make the experience as rich, fast, and personal as possible.

Learn how to log in to Microsoft Teams with your Microsoft 365 account. This step-by-step guide from Microsoft Support walks you through the process of accessing Teams on desktop, web, and mobile devices.

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.