The first time you add an RSS Feed to Outlook, you're prompted to choose if you want to keep your RSS Feeds subscriptions list synchronized between Outlook and the Common Feed List (CFL).

Important: Reactions are only available to individuals using a work or school account in Outlook with a qualifying Microsoft 365 subscription.

This article describes the formula syntax and usage of the AVERAGEIFS function, which returns the average (arithmetic mean) of all cells that meet multiple criteria.

Office Lens is an app for all of your Windows devices. It's a great way to capture notes and info from whiteboards, menus, signs or anything with a lot of text--and even images without text.

Learn how to use Microsoft Forms to create surveys, quizzes, and polls. Find tutorials, tips, and troubleshooting guides.

注意: 默认情况下，所有搜索都是 and 搜索。 必须将 not 和 or 运算符大写。 否则，必应将忽略它们作为停止字词，这些字词和数字是常见的单词和数字，为加快全文搜索速度而省略。

Learn how to turn on automatic app updates in Microsoft Store.

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Under Personalization & advertising, turn on or off the setting for Allow Microsoft to save your browsing activity including history, usage, favorites, web content, and other browsing data to personalize Microsoft Edge and Microsoft services like ads, search, shopping and news.

Smart App Control is a feature of Windows 11 that helps to block malicious, untrusted, or potentially unwanted apps from running on your device.