Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Note: The Wireless Display app is available on devices running Windows 11, version 22H2 and later.If you're running an earlier version of Windows, launch the Connect app by entering connect in the search box on the taskbar, and selecting Connect in the list of results. To find out which version of Windows you're running, see Which version of Windows operating system am I running?

Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following: Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through ...

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

Hardware problems can be caused by outdated or malfunctioning drivers. Make sure your audio driver is up to date and update it if needed. If that doesn't work, try uninstalling the audio driver (it will reinstall automatically).

如果这是你第一次安装 Microsoft 365，则可能需要先执行一些设置步骤。展开下面的 “了解详细信息”部分。 但是如果是重新安装 Microsoft 365，且已兑换了产品密钥并拥有与 Microsoft 365 相关联的帐户，请转到“登录并安装 Office”的部分。

To help with issues you might encounter when installing Microsoft 365 because of slow speeds or unreliable connections, as a first step download the Support and Recovery Assistant tool. (For information about this tool, go here.). Offline installer manual steps

If you have a subscription through a Microsoft 365 (or Office 365) plan, that's separate from Office 2024 or Office LTSC 2024. For example, if you are already using Microsoft 365 or if your organization deployed Microsoft 365 Apps for enterprise to the users in your organization, you don't need Office 2024 or Office LTSC 2024.

Cross-device copy and paste (for Surface Duo and select Samsung and HONOR and OPPO and ASUS and vivo and Xiaomi devices) Let emailing yourself photos and files be a thing of the past — now you can just copy and paste or drag and drop content between your Android device and your PC.

Keeping Bing as your default search engine provides an enhanced search experience in the new Microsoft Edge , including direct links to Windows apps, relevant suggestions from your organization if you’re signed in with a work or school account, and instant answers to questions about Windows.However, you can change the default search engine to any site that uses OpenSearch technology.