使用 Microsoft Edge，可以在设备上安装和管理常用网站的应用程序，以便快速访问。 使用 edge://apps 页查看已安装的应用程序并管理应用权限。 可以按安装日期、最近使用和字母顺序对已安装的应用程序进行排序。

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

sumproduct 使用单元格区域 (或创建数组 公式) 作为参数 (公式的各个部分，使其) 。 它将数组中的项相乘，然后对结果进行汇总。 此示例是一个购物清单，其中一个数组列出每个商品的成本，另一个数组列出将购买的商品数量。

Ensure these modes create an alert that is visible on your device. Make sure you have a device signal and Internet connection. Make sure your phone calls and text messages are getting through to your mobile device.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

使用新的 Microsoft Teams，现在可以在 Windows 桌面应用上登录到多个工作、学校和个人帐户。 在组织（包括来宾组织）之间轻松来回切换。 查看和更改各种帐户的通知设置。

See how Xbox cloud gaming works on Android, Apple, and Windows devices, as well as Xbox consoles and Samsung smart TVs.

Press and hold (or right-click) the MP4 file you want to play, select Open with, and then choose your preferred file player from the list of applications.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Get the most out of your subscription with expert advice and support from small business advisors. Business Assist for Microsoft 365 is designed for small businesses to give you and your employees around-the-clock access to small business advisors as you grow your business, from onboarding to everyday use.