What happens if there's an unusual sign-in to your account
Learn why you received a notification about unusual activity in your account and what to do next.
Outlook.com 的 POP、IMAP 和 SMTP 设置 - Microsoft 支持
如果尝试将 Outlook.com 帐户添加到 Outlook 或其他邮件应用，可能需要 POP、IMAP 或 SMTP 设置。 可以在下面找到它们，也可以在 Outlook.com 设置中查看它们。. Outlook 和 Outlook.com 可能能够自动检测帐户的邮箱设置，但对于其他非Microsoft帐户，可能需要联系电子邮件提供商了解其设置。
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook Web App for Office 365, Outlook Web App for Office 365 Small Business, Outlook on the web, Outlook.com, Outlook Web App for Office 365 operated by 21Vianet, Outlook Web App Light, New Outlook for Windows, Outlook for Android, Outlook Mail for Windows 10, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019, Outlook Web App
Welcome to the MSN home page - Microsoft Support
The new MSN website brings you the best in online information and is uniquely yours.
Account & profile | Xbox Support
Find everything you need to manage your Xbox account, profile, and more.
“Microsoft 手机连接”和“连接至 Windows” 简介 - Microsoft 支持
我们希望听到你的意见! 请继续与我们分享你的反馈 — 可以在 Google Play 商店中、直接在“手机连接”和“连接至 Windows”应用中或者在本文底部。
Receive files over Bluetooth - Microsoft Support
Receive photos, videos, or other kinds of files that you or a friend shares from another device, such as a phone, laptop, or tablet. On your PC, select Start > Settings > Devices > Bluetooth & other devices. Learn how to pair.
Unblock my Outlook.com account - Microsoft Support
If your Outlook.com account has been blocked, follow the instructions in this article to unblock it.
Applies To:
Outlook.com
Issue: An _xlfn. prefix is displayed in front of a formula
Explore subscription benefits, browse training courses, learn how to secure your device, and more.
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Microsoft Teams help & learning
Get help with your questions about Microsoft Teams from our how-to articles, tutorials, and support content.
Create a password reset disk for a local account in Windows
Learn how to create a password reset disk for a local account in Windows 10 and Windows 11.