Learn how to change your Windows desktop background (wallpaper) and accent color using personalization settings.

Learn how to download, install, and configure additional language packs for your version of Windows.

Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Do you need some help installing Quick Assist? For the best experience, download and install the new version of the Quick Assist app from Microsoft Store. If you have problems installing Quick Assist, here are some steps to try to get it installed and working properly.

Use a ready signature template from a gallery to create your email signature in Outlook.

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Learn how to connect your Windows PC to external monitors and adjust the display settings.

Learn how to navigate Windows using keyboard shortcuts. Explore a full list of taskbar, command prompt, and general Windows shortcuts.

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。