Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

了解如何添加新的 Xbox 好友，以便快速在线找到他们，为你的下一场游戏冒险做好准备。

Your settings go with you. When you adjust your privacy settings, turning things on or off, those settings will roam to all of your Windows, Mac, Android, and iOS devices.

Learn how to change app notifications, banners, and sound settings in Windows.

Learn how to use Feedback Hub to report problems or send suggestions to Microsoft.

After launching an Office app, you might receive a message that says Get genuine Office.. If you see this, we've determined that the Office product installed on your device isn't legitimate and you may be a victim of software counterfeiting.

Note: If you don’t see the Change link, it may be because some information, such as your name, photo, or title, is collected from systems that your IT or human resources department control.If you want to update those details, contact your administrator. If you need help finding your administrator, see How do I find out who my admin is?

Learn how to stop Microsoft Edge from starting automatically.

Important: Reactions are only available to individuals using a work or school account in Outlook with a qualifying Microsoft 365 subscription.

Change your Microsoft account picture. Notes: You can use most static image files on PC, macOS, iOS and Android, but HEIC and animated GIFs are not supported, sorry.