Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.

Get help with signing in, changing passwords, creating and sending mail, deleting mail, creating folders, and more in Outlook on the web.

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。

Connect your Surface on Windows 10 to a TV, external display, or projector by using the Surface HD Digital AV Adapter or the Surface VGA Adapter.

Visio is a diagraming tool that makes it easy and intuitive to create flowcharts, diagrams, org charts, floor plans, engineering designs, and more by using modern templates with the familiar Office experience. On this page, you can access some of the top templates and sample diagrams available in Visio, or request ones that you want. To see the hundreds of templates and sample diagrams ...

Find out how to change your Xbox gamertag through a browser, on your Xbox console, or your Windows device.

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.

Learn how to connect the Xbox Wireless Controller with your Xbox console.

Get info on how to find your IP address in Windows. Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

How to create, edit, and run Excel macros to automate data entry and tasks.