Learn how to create installation media for installing or reinstalling Windows 7, Windows 8.1, or Windows 10.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

检查你的版本 DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。

Find out how to use your gift card or code for Microsoft products and services, such as Windows, Xbox, or Office.

Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.

Select Start > All apps and search for the app in the list shown. Press and hold (or right-click) on the app, then select Uninstall. Uninstall in Settings. Select Start > Settings > Apps > Apps & features . Find the app you want to remove, select More > Uninstall. Note: Some apps can't be uninstalled from the Settings app right now.

Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

更改桌面背景图像. 你可以选择桌面背景并随时更改它。. 选择 “开始 > 设置” > “个性化 > 背景 ”。. 在 “个性化设置背景 ”旁边的列表中，选择“ 图片 ”、“ 纯色 ”、“ 幻灯片放映 ”或“ Windows 聚焦 (”，) 查看来自世界各地的新图像。. 注意: 如果无法 ...

Fresh Start in Windows 10 lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact.

To adjust power and sleep settings in Windows 11, select Start > Settings > System > Power & battery > Screen and sleep. Screen: Select how long you want your device to wait before turning the screen off when you're not using your device.