This article answers common questions about Microsoft Authenticator. Select the headings below to see more information.

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 ...

Learn how to open, navigate, and troubleshoot File Explorer in Windows, with answers to common questions and support assistance.

Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.

How to use the COUNTIF function in Excel to count the number of cells that meet values you set.

Learn how to add an app to run automatically at startup. Select the Start button and scroll to find the app you want to run at startup.

Learn how to get Microsoft Store updates for your apps and games. Download the latest versions of Microsoft Store apps and games.

Learn to set up and use your Surface Pen to work, play, and create.

Copilot is available in the Home tab of Word, Excel (Preview), PowerPoint, and Outlook if you are a Copilot subscriber. If you also have a Microsoft 365 subscription that includes the Microsoft 365 desktop apps then you should find Copilot available in those apps as well.

If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.