下载Microsoft Authenticator 重要: Microsoft不再支持超过一年的 Authenticator 版本。 始终使设备保持最新状态。 Android iOS 使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。

Get started with basic tasks in Excel such as opening a workbook, entering and formatting data, calculating data, and trying some quick analysis features..

Если вы пытаетесь активировать Windows 11, дополнительные сведения см. в разделе Активация Windows. Если у вас возникли проблемы с установкой обновлений, см. статью Устранение неполадок с обновлением Windows. Ответы на часто ...

Outlook on the web は、組織で使用される Outlook の Web ベースのバージョンです。 この Web ベースのバージョンの Outlook にアクセスするには、職場または学校アカウントでサインインする必要があります。 職場または学校のアカウントは、通常、organizationのユーザーによって割り当てられます。

Learn how to upgrade Windows 10 Home to Windows 10 Pro to access more advanced security and networking features.

To see self-help answers, or to get support via email, Select Help from the top menu then Help. Open the Help pane. Enter your question or issue in the Search Help box on the right, and then press Return. If the self-help answers don't resolve your issue, try a different search, or scroll to the bottom of the Help pane and, under Still need ...

OneDrive desktop app for Windows Here are some answers to the frequently asked questions about the OneDrive desktop app for Windows.

Se não for possível entrar na conta de email do Outlook.com, Hotmail, Live ou MSN, ou se não souber como entrar ou sair, confira algumas soluções.

Here are the top ten tips to get started: Start a chat and send your first message. Add teammates to the chat to turn it into a group conversation. Choose a chat reaction to share how you feel about a message. Add an emoji or GIF to bring some fun to a conversation.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.