Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox).

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

使用 Windows 中的“设置”应用通过蓝牙发送文件。 与拥有手机、笔记本电脑或平板电脑的好友共享照片、视频或其他类型文件。

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.

由于电源问题、电脑与手机的距离或其他技术问题，手机连接 呼叫可能无效或中断。 此外，手机连接 和传统无线（移动）或固网电话服务之间存在重要区别。 根据任何适用的本地或本国规则、法规或法律，手机连接 无需提供对紧急服务的

To count numbers or dates that meet a single condition (such as equal to, greater than, less than, greater than or equal to, or less than or equal to), use the COUNTIF function. To count numbers or dates that fall within a range (such as greater than 9000 and at the same time less than 22500), you can use the COUNTIFS function. Alternately, you can use SUMPRODUCT too.

如果你遇到了无线显示器或无线扩展坞连接问题，请尝试以下操作以修复问题： 请确保你的 Windows 10 设备支持 Miracast。 下面介绍如何在电脑上检查：选择“开始” 按钮，键入“连接”，然后从结果列表中选择“连接”。 在“连接”应用中，文本将告知你 Windows 10 设备是否支持它。

Erfahren Sie, wie Sie Einstellungen-App zum Anzeigen und Ändern von Anzeigeeinstellungen in Windows.

當您在 Android上第一次登入Microsoft Defender時，我們會逐步引導您完成幾個從設定 Web 保護開始的簡單步驟。在此程式中，我們會要求您授與 Defender 許可權以執行兩件事：在背景執行，以及使用輔助功能服務。

The issues you encounter when trying to install Microsoft 365, or Office 2021, 2019, or 2016 and how you fix them depends on whether your product is part of an Office for home or Office for business plan.. In addition, with Office for business plans only admins responsible for managing Microsoft 365 in their organization can do certain tasks. Therefore, admins should view the issues and ...