Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. Set up Office apps and email on a mobile device. Small business help and learning. Learn how to download and install apps you need from your Microsoft 365 business subscription.

Most software that you buy directly from Microsoft, like Office, Windows, and Xbox games, comes as a digital download that you can download, install, or reinstall. After you purchase software, the download will be shown in your Order history.

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.

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From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

For Microsoft 365 operated by 21 Vianet go to login.partner.microsoftonline.cn. For Microsoft 365 Germany go to portal.office.de. This completes the download of Microsoft 365 to your device. To complete the installation, follow the prompts in the "Install Microsoft 365" section below.

MICROSOFT TEAMS （免费版） 最终用户通知. Microsoft Teams （免费版）旨在供小企业或合作团体等组织使用。 如果您受邀加入 Microsoft Teams （免费版）中的团体，则就本通知而言，您在 Microsoft Teams （免费版）中加入的团体将被视为您的组织，且该团体的管理人员将被视为您的 Microsoft Teams （免费版）帐户的 ...

培训：你和你的团队可以在 Microsoft Teams 中的团队和频道中进行协作。 发布公告、共享更新、查找文件等。 在此视频中了解如何使用。