即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Describes how to investigate items in an Outlook Data File (.pst) and troubleshoot search issues.

Learn how to download, install, and configure Language Accessory Packs for Microsoft 365 for additional display, help, and proofing tools.

Learn how to use the privacy dashboard in your Microsoft account and manage your privacy settings for products you use.

Erfahren Sie, wie Sie Windows mithilfe von Tastenkombinationen navigieren. Hier finden Sie eine vollständige Liste der Taskleisten-, Eingabeaufforderungs- und allgemeinen Windows-Tastenkombinationen.

Views give you different ways to look at items in a folder. Each Outlook folder, such as Inbox and Calendar, allows you to customize your view to change fonts, the organization of items, and many other settings.. What would you like to do? Remove the dark background

Learn how to set up Microsoft Family Safety to manage screen time, filter content, and share location with your family members.

Office for Mac applications automatically check for potential spelling and grammatical errors as you type. If you’d rather wait to check spelling and grammar until you're done writing, you can turn off automatic checking, or you can check spelling and grammar all at once.

This article shows you how to reassign certain keys to make it easier to accomplish your daily tasks.

Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders.