Download and install or reinstall Office 2019, Office 2016, or Office ...
Learn how to install Office 2013 on your PC or Office for Mac 2011.
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
屏幕镜像和投影到电脑或无线显示器 - Microsoft 支持
如果你正在使用 Windows 电脑，并且想要在电脑设备上显示来自其他屏幕的应用程序和内容，则需考虑将设备屏幕镜像或投影到 ...
How do I connect my Xbox controller to PC? | Xbox Support
Find out how to connect your Xbox Wireless Controller to a Windows device.
Turn on device encryption - Microsoft Support
Learn how to turn on device encryption, or standard BitLocker encryption in Windows.
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.
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定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
Change your app recommendation settings in Windows
Go to Settings > Apps > Apps & features to change whether you're shown app recommendations when trying to install apps from outside the Store.
Stay protected with Windows Security - Microsoft Support
Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.
Troubleshoot screen flickering in Windows - Microsoft Support
Find out how to stop your screen from flickering after the upgrade to Windows 10.
Use voice typing to talk instead of type on your PC
To use voice typing, you'll need to be connected to the internet, have a working microphone, and have your cursor in a text box. Once you turn on voice typing, it will start listening automatically.