我运行的是哪个 Windows 操作系统版本？ - Microsoft 支持
了解如何查找电脑正在运行的 Windows 操作系统版本和设备规格。
Skype help & learning
Get help and learn how to use Skype with Microsoft's official support page.
How to correct a #SPILL! error - Microsoft Support
How to correct a #SPILL error in Excel (when a formula returns multiple results and cannot return them to the grid).
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 for iPad, Excel Web App, Excel for iPhone, Excel for Android tablets, Excel for Android phones
Manage background activity for apps in Windows
Learn how to manage background activity for apps to help save battery power in Windows.
Microsoft Teams help & learning
Get help with your questions about Microsoft Teams from our how-to articles, tutorials, and support content.
What is Data Execution Prevention (DEP)? - Microsoft Support
Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.
Excel functions (alphabetical) - Microsoft Support
A complete list of all Excel functions in alphabetical order.
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
Add and remove group members in Outlook - Microsoft Support
Learn how to add and remove group members and to promote and demote group owners in Microsoft 365.
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, New Outlook for Windows, Outlook for iOS
Surface Laptop 3 specs and features - Microsoft Support
Surface Laptop 3 has power and style to help you get things done throughout your day the way you want. Get to know Surface Laptop 3. To help you get around, here are some diagrams for Surface Laptop 3.
Automatically diagnose and fix problems with Windows Firewall
Automatically repair Windows Firewall problems, such as Windows fails to start Windows Firewall service (0x5) or Windows remote assistance is not working.