Learn how to fix common problems with Outlook for Microsoft 365, Outlook 2021, and Outlook 2019. Find out how to restart, uninstall, reinstall, update, and disable add-ins for Outlook.

Learn how to fix the error "Cannot start Microsoft Outlook. Cannot open the Outlook Window" or other problems when you try to launch Outlook. Follow the guided support or the troubleshooting steps provided by Microsoft.

Learn how to start Outlook in safe mode, which disables add-ins, if Outlook won't open. Find the full path to Outlook.exe /safe and more tips on disabling add-ins.

The new Outlook for Windows will be pre-installed on new Windows devices and devices running Windows 11 version 23H2. If you're new to Windows 11 SV2 and above, you'll see new Outlook pinned to the Start menu starting September 2023.

You can use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file. The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape.

Learn how to download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. Find out the system requirements, product keys, activation steps, and troubleshooting tips.

Download and use the Microsoft Support and Recovery Assistant to diagnose and fix Outlook problems automatically. Learn how to troubleshoot startup, email, calendar, and other issues with Outlook for Windows.

Launch Outlook in safe mode by choosing one of the following options. In Windows 10, choose Start, type Outlook.exe /safe, and press Enter.

There are now two versions of Outlook for Windows: new Outlook for Windows and classic Outlook for Windows. To determine if the Outlook for Windows version you're using is new Outlook or classic Outlook, check if there's a File tab on the ribbon. If File doesn't appear, you're using new Outlook.

New Outlook for Windows. Last updated: September 3, 2024. The new Outlook for Windows brings you the latest features, Microsoft Copilot-assisted capabilities, and a new modern and simplified design to help you connect, organize, and get things done.