Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup. Redeeming your key is what links your account with Microsoft 365 so you only have to do this once.

Activate Microsoft 365 or a non-subscription version of Office that's pre-installed on a new Windows device. If this screen appears, a trial version of Microsoft 365 Family or a trial version of a non-subscription version of Office is installed.

我们建议使用空白 U 盘或空白 DVD，因为其中的任何内容都将被删除。. 从 ISO 文件刻录 DVD 时，如果提示光盘映像文件太大，则需要使用双层 (DL) DVD 介质。. 产品密钥。. 25 个字符的产品密钥（如有数字许可证，则不需要）。. 有关查找产品密钥的帮助，请参阅 ...

激活在新 Windows 设备上预安装的 Microsoft 365 或非订阅版本的 Office. 如果显示此屏幕，则会安装 Microsoft 365 家庭版 的试用版或 Office 的非订阅版本的试用版。. 如果你登录到 Microsoft 365 或非订阅版本的 Office，该版本已预安装在新设备上，但没有与你的帐户关联的 ...

若要安装 Microsoft 365，请尝试改为直接登录 Microsoft 365 软件页面。. 选择所需的语言和位版本（电脑用户可选择 32 位或 64 位），然后单击“安装”。. 参见上面“电脑”或“Mac”选项卡上的步骤 2 和 3，获取其余安装步骤的帮助。. 注意: . 如果组织使用由中国的 ...

在 Windows 设备上自定义 Game Bar. 自定义 Game Bar，从而在游戏和喜欢的游戏活动之间无缝跳转。. 请注意，自 2024 年 10 月起，某些功能需要 Windows 10 22H2 或更高版本才能在 Xbox 应用和 Game Bar 中正常工作。. 你可以在“设置”>“系统”>“关于”>“Windows 规范”>“版本 ...

Try Microsoft Update or contact your company help desk. To download an update manually, see Office Updates. If you would like to update Office but can't open any of your Office apps, try repairing your Office suite: Go to Control Panel > Programs > Uninstall a program.

Support for Microsoft Edge Legacy ended on March 9. 2021. If you attempt to access Microsoft Web apps and services from Internet Explorer after August 17, 2021, you might experience degraded performance or be unable to connect at all.

了解如何在 Microsoft Edge 中查看、管理和删除 Cookie。.

Set screen time limits online. Learn how to manage and set device screen time limits on Windows, Xbox, and mobile devices connected through the Microsoft Family Safety app.