You can block messages from specific email addresses or domains from reaching your inbox. When you add an email address or domain to your blocked senders list, Outlook automatically moves …

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A phishing email is an email that appears legitimate but is actually an attempt to get your personal information or steal your money. Some deceptive emails appear to be from a safe sender but, in fact, …

Signing in with modern authentication varies depending on if you're working in Windows or on a Mac, or whether your company has enabled single-factor authorization or multi-factor authorization. Multi …

System protection in Windows is a recovery feature designed to help you safeguard your system settings. It primarily involves creating and managing restore points, which are snapshots of system …

Important: The following steps show you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Please make sure that you follow these steps carefully. …

You can use Microsoft Family Safety to block apps used by family members on Windows, Xbox, Edge, and mobile devices.

For issues that are not covered on this page, we have multiple tools to help you automatically diagnose and fix a range of Outlook problems.

Expand this section for older crashes and slow performance issues that are fixed

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 if your search shows No results found, …