Outlook. Outlook on the web. Mail and Calendar. Available for purchase as part of Microsoft 365 or Microsoft 365. Accessible from most browsers at Microsoft 365 portal.. Available for iOS and Android devices.

查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。

Learn how to create a timeline in Microsoft Office apps. Create a graphical representation of a sequence of events with the SmartArt graphic timeline.

Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.

Find out how to access and modify cellular settings on your Windows PC with this official guide from Microsoft Support.

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 ...

@提及某人向他们发送通知，并在 Microsoft Teams 中引起他们的注意。

As a meeting presenter, you can use Microsoft Forms to create polls before your Microsoft Teams meeting, then launch them during it so attendees from any endpoint (mobile, web, desktop) can view and answer. When you launch your poll, it will pop up on attendees' meeting screens as well as in the meeting chat. Attendees can also create ad-hoc polls during a meeting to get quick feedback on the ...

All but the original Xbox Wireless Controller can take updates wirelessly without connecting with a USB cable. This controller has a small, circular 3.5-mm port on the bottom of the controller (if your controller has this port, you can only update via USB cable).

Learn how to get Microsoft and Xbox gift cards for friends and family that can be redeemed for apps, games, movies, devices, and more.