Install and use a scanner in Windows 10 - Microsoft Support
Learn how to install a scanner and use it to scan pictures and documents in Windows 10.
欢迎使用 Windows 中的 Copilot - Microsoft 支持
使用 Copilot 应用在 Windows 设备上体验 Microsoft Copilot！ Copilot 应用可帮助你从整个 Web 获取答案和灵感，支持创造力和协作，并帮助你专注于手头的任务。
Restore deleted files or folders in OneDrive - Microsoft Support
Learn how to delete and restore files in OneDrive. Recover deleted files or folders from the OneDrive recycle bin.
Applies To:
OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, OneDrive (work or school), OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows
Excel video training - Microsoft Support
Learn Excel skills from beginner to advanced with video tutorials, templates, and tips from Microsoft Support.
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2016
Fix printer connection and printing problems in Windows
Learn ways to fix common printing problems in Windows 10. Reinstall your printer. If your printer is turned on and connected to the network, Windows should find it easily.
Get to know Game Bar on Windows | Xbox Support
Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
在 Excel 中，IF 函数允许通过测试某个条件并返回结果（如果该条件为 True 或 False），在值和预期值之间进行逻辑比较。
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App, Excel for Windows Phone 10
Free up drive space in Windows - Microsoft Support
Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.
在 Windows 中查找 BitLocker 恢复密钥 - Microsoft 支持
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。
Recovery options in Windows - Microsoft Support
Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.