If Outlook works fine now, you know one of those add-ins was the problem. Next, you can go back and turn them on one at a time. So, it will be helpful to find out which one caused the issue. In short, even small things can make Outlook stop working. But the good part is, you can fix most of these problems with simple steps.

To learn more about how to share your feedback, see How do I give feedback on Microsoft Office. Visit Firefox support to learn how to Disable or remove Add-ons. If you access your Outlook.com account through the iOS Mail app, you may be repeatedly asked to enter your username and password. We're aware of an issue where some users see the error message "Your message can't be displayed right now".

Microsoft has released a Windows Hotfix file to remove the contacts folder methods to stop Outlook crashing synced by the Teams app. This fix will also lead to a reduction in the total number of contacts on your contact list. We will ensure that all information is retained and only contacts with matching information in all fields will be cleaned up.

The funny thing is that methods to stop Outlook crashing the new "modern" Outlook worked fine, though, which made things even more confusing. We looked at the sign-in logs, tested new accounts, and eventually found what was really going on. Microsoft Outlook is one of the most widely used email clients globally, especially in professional and business environments. Outlook also comes with strong built-in security features, making it a reliable choice for managing communication and workflow.

If you would like a deeper explanation or step-by-step instructions, scroll down to the section covering your issue methods to stop Outlook crashing for more details. If you're committed to the task of Outlook troubleshooting in the meantime, let's get into our guide that will help you solve some of the most annoying Outlook issues. The classic Outlook consistently failed with CAA2000B or 4usqa, depending on the account state. However, when signing in using the new Outlook app, everything worked. Outlook sign-in failures started appearing in multiple tenants without any obvious cause.

Check the status bar at the bottom of the screen to see if another process is running. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. Rohan Wiese is a Technical Content Writer at Aryson Technologies, specializing in databases, e-mail recovery, and e-mail migration solutions. Corrupted or badly set-up Outlook profiles can often cause start-up problems.

You can read about it and then run the Microsoft Support and Recovery Assistant to see if that helps. It can automatically diagnose issues, troubleshoot, and fix problems with Outlook. Note that the above link is for desktop Outlook for Windows. A more general version that can also fix Office, Microsoft 365, and other Outlook problems can be found here. Faulty hard drives or disk errors can corrupt the Outlook data stored locally. This creates crashes that seem random—until you dig into the hardware logs.

Configure your antivirus software to exclude Outlook files or processes from real-time scans to avoid interference. The AppData folder hosts a lot of files, including bookmarks and cached pages. This might be slowing down or overriding other commands in Outlook.

If you're entering a password you know is correct and getting a message that says "incorrect password," then you'll want to read this page. If you are using Gmail or Google Workspace as well as the Outlook calendar, it would be nice to methods to stop Outlook crashing have them populated with the same information. Here is how to make sure your Outlook is showing the same information as your Google Calendar. If nothing else fixes your Outlook search problem, then your Spotlight index may be corrupt.

Solutions to Troubleshoot 'Out of Memory or System Resources' ErrorCheck Resource Usage. ...Restart and Update Outlook. ...Optimize System Resources for Outlook. ...Find and Remove Faulty Add-ins from Outlook. ...Increase the Size of the Memory Heap. ...Rebuild the OST File.Apr 7, 2025

If you're still unable to send or receive email, read how to Fix Outlook.com email sync issues. Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. None of the events or information was lost in the move to the new calendar.

This happens to accounts that are configured in the iOS Mail app. The issues documented in this section have been reported after installing the recent updates listed below. We're investigating the issues and will update this page when a fix is available. In the meantime, please use the workarounds suggested for each issue.

You'll need to acquire a recovery tool designed for bigger jobs. Search "PST Repair Tool" and you'll find many reputable programs who know how to fix methods to stop Outlook crashing this Outlook issue. Clear unnecessary files from outbox and trash folder to optimize the performance of your Outlook application. Also, try to use the necessary Outlook features to enhance the performance of Outlook as well as Windows. When you reinstall Outlook, you are removing the current application from your system and then installing it again.