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 ...

Learn where to enter your product key for different versions of Office or Microsoft 365, and how to install or reinstall Office after redemption. Find tips for troubleshooting product key issues and contacting support.

登录到 microsoft365.com 以查看Microsoft 365 工作或学校帐户。 登录 安装和管理应用。 在 Office 应用卡上，选择“管理”，然后选择“安装”以安装或重新安装最新的桌面应用或其他应用，例如 Project 或 Visio 。(只要管理员 为你分配了许可证 并授予你自安装的权限，安装选项就可用。

Learn how to redeem Microsoft and Xbox gift cards, download codes, tokens, and Office product keys to your Microsoft account. Find troubleshooting tips and contact support if you need help.

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。

Download and use the Office Deployment Tool to manage your Office 2016 Click-to-Run deployment options. Learn how to customize installations sources, product and language combinations, or deployment configuration options.

The Xbox Stereo Headset, Xbox One Stereo Headset, and other types of compatible headsets can be connected to your Xbox Wireless Controller, or to an Xbox Elite Wireless Controller using either a 3.5mm audio jack or the Xbox One Stereo Headset Adapter.

重要: Microsoft帐户、Windows 操作系统和其他Microsoft产品包括密码，以帮助保护你的信息。本文提供了一些选项，可用于在忘记密码时重置或恢复密码。 请注意，如果这些选项不起作用， Microsoft支持无法帮助你检索或绕过丢失或忘记的密码。

Tap the pen icon at the top to open the ribbon. Tap the Review tab. Tap the control next to Track Changes to turn Track Changes on or off. Show or hide markup (Word for iPhone) On the Review tab, tap Display for Review. Tap the option you want: All Markup (inline) shows the final document with tracked changes visible inline.

Learn about the different Outlook products and services for email, calendar, contacts, and more. Compare Outlook for Windows, Mac, web, iOS, Android, Outlook.com, and Mail and Calendar for Windows 10.