Teams 和频道; 呼叫和设备 ... 注意: 如果某人离开或从群聊中删除，他们的消息将保留在群聊历史记录中。 但是，编辑群聊中的任何消息会使该消息对以前的参与者不可见。

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by:

Learn how to find and change settings in Windows. Find your Windows settings in a snap! Select the Start button, then select Settings .From there, browse the categories or use search to find what you're looking for.

This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.

Learn how to install a scanner and use it to scan pictures and documents in Windows 10.

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

Learn how to connect to a Wi-fi network in Windows and manage your current network connections.

Learn how to view and delete your browser history and other history in Microsoft Edge.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.