Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

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

Collections in Microsoft Edge helps you keep track of your ideas on the web, whether you're shopping, planning a trip, collecting notes for research or lesson plans, or just want to pick up where you left off the last time you were browsing the internet.

扩展或加载项是自定义浏览器体验并为你提供更多控制权的简单工具。 下面介绍如何在 Microsoft Edge 中添加、关闭和删除扩展或加载项 。

Learn how to make items on the screen appear larger by using Magnifier in Windows.

Get troubleshooting tips if you run into problems downloading, installing, or updating Microsoft Edge.

Use the People page in Outlook.com to view, create, and edit contacts and contact lists. Create new contacts from scratch, or add someone as a contact from an email message.

Learn how to use eye control in Windows to type with an on-screen keyboard, communicate with people, and control the mouse with your eyes.

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

Some users prefer the Office web apps, others prefer the Office desktop apps. We've designed an experience where users get to tell us what they prefer, and then their links open in their preferred mode - either Office web apps or the Office desktop apps.