Contact - Microsoft Support
Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2
Troubleshoot screen flickering in Windows - Microsoft Support
Find out how to stop your screen from flickering after the upgrade to Windows 10.
Perform an offline system update | Xbox Support
Learn how to update your Xbox console offline.
Get help with a digital code or gift card | Xbox Support
Find out more about Xbox digital codes and gift cards, and how to troubleshoot issues redeeming content.
Téléchargez et installez ou réinstallez Microsoft 365 ou Office 2021 ...
Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
Windows 10 and Windows 11 in S mode FAQ - Microsoft Support
Get answers to common questions about Windows 11 and Windows 10 in S mode.
Change the refresh rate on your monitor in Windows
Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.
Description of Microsoft System Information (Msinfo32.exe) Tool
Summary. Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.
激活 Windows - Microsoft 支持
了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。
Turn off Defender antivirus protection in Windows Security
Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.