Be productive on the go. Access your files with the Microsoft 365 mobile app for Android and iOS, which combines Word, Excel, and PowerPoint into one single app. Focus on what matters with Outlook mobile app, and create files anywhere with OneDrive mobile app.

作为员工、IT 工作人员或最终用户，为工作或学校帐户设置身份验证、重置自己的密码、设置和加入设备、设置 Microsoft Authenticator 应用，以及使用"我的帐户"和"我的应用"门户。

To change your screen resolution, use the drop-down menu under Display resolution.. Note: You should use the Recommended resolution. If you change the resolution, content might appear blurry or pixelated.

To turn off your PC in Windows 10, select the Start button, select the Power button, and then select Shut down.. I'm having trouble opening the Start menu

After you set up your security verification methods for your work or school account, you can update the related details. Using the Security info page

Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

嵌套 Excel 函数 在某些情况下，您可能需要将相应函数作为另一函数的参数使用。 例如，以下公式使用嵌套 AVERAGE 函数 ，并将结果与值 50 进行比较。 1. AVERAGE 和 SUM 函数嵌套在 IF 函数中。 有效返回值 当将嵌套函数作为参数使用时，该嵌套函数返回的值类型必须与参数使用的值类型相同。

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

Do you want to learn how to navigate Windows using keyboard shortcuts? Whether you need to switch between apps, open the command prompt, or perform any other tasks, you can find a full list of keyboard shortcuts in Windows on this webpage. Discover how to save time and improve your productivity with these handy tips.

Open User Accounts by clicking the Start button , clicking Control Panel, clicking User Accounts and Family Safety, clicking User Accounts, and then clicking Manage another account .. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.