When you need to protect the privacy of an email message, encrypt it. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text.

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The Office app is running in the background. If the file is not shared on a network or if you are certain that no one is currently editing it, then an instance of the Office app with the file open might be running in the background.

After you turn on two-step verification or set up the Authenticator app, you may run into issues if you use older devices (like Xbox 360 or a mail-sending security camera) that don't support two-step verification. For those devices, you can sign in with an app password instead. An app password is a long, randomly generated password that you provide only once instead of your regular password ...

If you want to secure your content and get a link that only works for the people you invite, select Specific people in Link settings when creating the sharing link.. The recipients' experience depends on the settings you select when creating the sharing link, and the account they use to view the file.

Learn how to sign in or out of your Outlook.com, Hotmail, Live, or MSN email account with Microsoft Support's step-by-step guide.

In the upper left corner of the window, select the app launcher > SharePoint Tip: If you don't see the SharePoint app after selecting the app launcher, you can find it by either selecting More apps, or using the Search box near the top of the window to search for SharePoint.

Numbers that are stored as text can cause unexpected results, like an uncalculated formula showing instead of a result. Use a formula to convert from text to numbers

Microsoft 365 Copilot combines the power of artificial intelligence (AI) with your work data and apps to help you unleash creativity, unlock productivity, and uplevel skills in a chat experience.

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。