To increase security and performance, Windows 11 in S mode only runs apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, or if you have Windows 10 Pro, Enterprise, or Education and want to upgrade to Windows 11, you'll need to permanently switch out of S mode.

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When deleting items from Inbox or other folders, items are sent to the Deleted Items folder by default. The Deleted Items folder does count against your mailbox storage quota until it is manually emptied or the emails are automatically deleted after 30 days, whichever happens first.

某些扩展会更改浏览器设置，例如默认搜索引擎、新选项卡页和其他类型的网站数据。 为了防止扩展更改在 安装时设置的首选项Microsoft Edge，浏览器会自动关闭可能会更改首选设置的扩展。 你随时可以更改扩展的设置。 若要打开扩展，请：

Get up to speed with Microsoft Office by using these cheat sheets for quick reference and mastering keyboard shortcuts.

了解如何在移动设备、Windows 设备或 Xbox 主机上兑换 Microsoft/Xbox 礼品卡或其他代码。按“开始”按钮 ，然后在“搜索”框中输入“商店”。 从结果中选择 Microsoft Store 以打开应用。选择屏幕右上角的帐户，然后选择 兑换充值码或礼品卡。输入由 25 个字符组成的代码，选择 下一步，然后按照提示操作。

相关主题 重新打开 Microsoft 帐户 需要更多帮助吗？ 请联系支持人员 有关技术支持，请转到联系Microsoft 支持，输入问题并选择“获取帮助”。 如果仍然需要帮助，请选择“联系支持人员”以转至最佳支持选项。

注意: 如果已将 工作或学校 OneDrive 同步到计算机（使用的是以前的同步应用）并且只安装了 同步应用，则在 OneDrive 安装期间，将不会看到“这是你的 OneDrive 文件夹”或“同步你的 OneDrive 中的文件”屏幕。同步应用 将自动接管在之前使用的相同文件夹位置中进行的同步。

Windows 10 puts notifications and quick actions in Action Center—right on the taskbar—where you can get to them instantly. Select Action Center on the taskbar to open it. (You can also swipe in from the right edge of your screen, or press Windows logo key + A.). Notifications at a glance

If you trust a file, file type, folder, or a process that Windows Security has detected as malicious, you can stop Windows Security from alerting you or blocking the program by adding the file to the exclusions list.