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Installing Microsoft Defender - Microsoft Support
Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.
Applies To: Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
Sign in to SharePoint - Microsoft Support
Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.
Applies To: SharePoint in Microsoft 365
创建适用于 Windows 的安装介质 - Microsoft 支持
了解如何创建用于安装或重新安装 Windows 7、Windows 8.1 或 Windows 10 的安装介质。
Phone Link requirements and setup - Microsoft Support
System requirements and setup steps for the Phone Link app
Getting the most out of your PC backup - Microsoft Support
Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.
Contact us | Xbox Support
Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.
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.
Pin apps and folders to the desktop or taskbar - Microsoft Support
In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.
Fix OneDrive sync problems - Microsoft Support
Learn how to fix common OneDrive personal or OneDrive for Business sync problems.
Applies To: OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint Server 2016, SharePoint Server 2013 Enterprise, SharePoint in Microsoft 365, Office for business, Office 365 Small Business, Microsoft 365 admin, OneDrive (work or school), OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows, SharePoint admin center, SharePoint in Microsoft 365 Small Business
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.