If the problem no longer occurs, it confirms that one of the add-ins that you just disabled was causing the issue. However, we came across many users who are still struggling with this Outlook issue. They still wonder ‘Why is Outlook constantly not responding? ’ So, it is possible that your PST file will get corrupted and you can lose all important data. Or, if the problem is itself due to oversized PST getting corrupt, you need to recover PST data as soon as possible.

Manual Ways to Resolve Microsoft Outlook Crashes When Opening Issue

I suspect it’s an update that came down recently but I have no idea which one. You could try just removing all the April Office patches in Windows Update. It is possible it’s a patch doing this, a plugin or extension or something else, but without an error or log entry, it’s hard to tell.

I didn’t have to reboot, but did have to get users signed off before running the third command. Try the tool mentioned above because it is effective and convenient, and it scans and fixes errors in both PST and OST files. This tool can be downloaded for free as a trial version.

How to troubleshoot issues that cause Outlook to crash or stop responding when used with Microsoft 365

Now, let us move into the solutions to fix the issue of MS Outlook. Once the file is re-written, relaunch the apps and everything Microsoft 365 account recovery help is stable. The only other change to the Exchange Server was a certificate update for IIS.

Outlook crashing opening calendar

There could be many more solutions to this Outlook problem because the causes are diverse. However, this article will go over the simplest solutions to the Outlook crashing problem. Any previously stated causes could be held responsible for the Outlook closes or crashes issue.

Repair Your MS Outlook Account

Corrupt data files (OST or PST) can also cause this Outlook crashing issue. However, rebuilding the data file can resolve corruption issues. Most businesses and organizations rely on Outlook for daily communication and scheduling. This issue can disrupt your workflow and lead to data loss if not addressed promptly. Therefore, to help you out with this issue, here is a comprehensive guide with some effective troubleshooting solutions. However, often these situations lead to PST file corruption.

How to fix Outlook crashing issue?
ProcedureExit Outlook.Open a Run dialog box. ...Type Outlook /safe, and then click OK.If the issue is fixed, click Options on the File menu, and then click Add-Ins.Select COM Add-ins, and then click Go.Click to clear all the check boxes in the list, and then click OK.Restart Outlook.Jun 25, 2025

Scope of impactImpact is specific to some users who are served through the affected infrastructure. Obviously update the client edition and product ID to match your environment but this worked. If this still does not work, try repairing MS Office. Then, select your account and click Open File Location. Though there could be numerous reasons why Outlook crashes or crashes on your PC, you will go over a few problems in this article and show you how to fix each one. Has anyone seen this as well with this months updates.

Therefore, to help you out with this issue, here is a comprehensive guide with some effective troubleshooting solutions.Check if the problems causing ‘my Outlook keeps shutting down’ persist.If you go through all of those steps and Outlook is still crashing or not responding, complete step 4 before contacting the Microsoft Community for further help.Run the classic Outlook advanced diagnostic troubleshooter if you've tried all of the preceding steps and Outlook is still crashing or hanging.So, for a worry-free and risk-free conversion, using the professional tool is the optimum choice.Now, let us move into the solutions to fix the issue of MS Outlook.It also gives you the option to upload your results to Microsoft so that a support engineer can review them.Or, if the problem is itself due to oversized PST getting corrupt, you need to recover PST data as soon as possible.

This step will show you how disabling the add-ins can help. Generally, many programs and applications run simultaneously or in the background which can cause interruptions. Therefore, first, restart your system, and second, check the internet connection. Follow the given ways along with their steps to fix the error and access your files. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Next, open the Run dialog box, type %localappdata%\Microsoft, and press Enter.

The most common problem users encounter when accessing their email accounts in Outlook is "Outlook 365 crashing". In most cases, the issue is caused by incompatible or faulty add-ins. This article discusses some methods for resolving Outlook 365 keep crashing issues. Hopefully, one of these solutions worked for you, and Outlook is now stable and operating normally. At the time of writing, Microsoft is still investigating the issue.