On the Outlook status bar, if you see Disconnected, Working Offline, or Trying to connect…, then Outlook can't reach the email server to send your mail.. To fix this problem, on the ribbon, select the Send/Receive tab, then, in the Preferences group, select Work Offline to toggle between offline mode and online mode.You may need to open the message and send it again or choose Send/Receive.

重要: 在选择从媒体启动之前，应验证设备是否满足最低系统要求，因为满足后才允许安装 Windows 11，如果你至少具有 TPM 1.2（而不是最低系统要求的 TPM 2.0），它将不会根据处理器的系列和模型验证处理器是否在批准的 CPU 列表上。

Microsoft建议在登录到 Windows 时使用 Microsoft 帐户，而不是本地帐户。 在 Windows 中使用Microsoft帐户可以无缝集成Microsoft服务、增强的安全性，以及跨设备同步，这与本地帐户不同。 请在使用 Microsoft 帐户登录中了解有关 Microsoft 帐户的详细信息。

Learn common SharePoint Online tasks with these videos and tutorials, and get links to more training for SharePoint and Office 365.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Published August 2021. This article is intended for users who are not able to upgrade to Windows 11 because their PC is not currently Secure Boot capable.

On your PC, go to Xbox.com and select Sign in.If there are problems with your account, the instructions will help you solve them. If you can’t go beyond the sign-in screen, select Forgot my password and follow the instructions.

Microsoft Defender is a security app that helps people and families stay safer online with malware protection, web protection, real-time security notifications, and security tips.Microsoft Defender is included in a Microsoft 365 Family or Personal subscription and works on your phone (Android or iOS), PC, and Mac.

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Find everything you need to manage your Xbox account, profile, and more.