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. For that, we have suggested a reliable PST Recovery Tool. Run the classic Outlook advanced diagnostic troubleshooter if you've tried all of the preceding steps and Outlook is still crashing or hanging.

Solved: "Microsoft Outlook Keeps Crashing" Error in 2025

The Classic outdoor signs for business Outlook Advanced Diagnostis troubleshooter generates a detailed classic Outlook configuration report.

Why My Outlook is Closing Automatically?

Additionally, you can try the free trial tool to learn all about its functionalities and workings as well. Nevertheless, you cannot save the recovered data when using the demo tool. For that, purchase the premium version of the software. Running the latest version of Outlook ensures you have the most recent fixes and updates. An outdated version can also be a cause of why Outlook keeps crashing unexpectedly.

Investigate possible issues caused by add-ins

However, if the problem persists, you can try the following solutions. Strangely enough, many users started facing the same issue after downloading the version 2504 update, which was released for Outlook for Microsoft 365 at the beginning of June. Microsoft has once again acknowledged the issue, but this time they have also explained the reason behind the crash. Shivam is a digital marketer and technical content writer at DRS Solution®, specializing in topics like databases, email recovery, and migration solutions. She enjoys researching and crafting content that assists database administrators, businesses, and beginners in resolving various issues related to MS SQL, MySQL, and Microsoft Exchange. We often install Add-ins in Outlook to enhance Outlook’s functionality.

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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. At the time of writing, Microsoft is still investigating the issue. Until a permanent solution is found, they’ve released a temporary workaround to address the problem. Since the issue is related to the Forms Library, Microsoft has suggested that affected users create a new FORMS2 folder.

• Therefore, first, restart your system, and second, check the internet connection.
• Until a permanent solution is found, they’ve released a temporary workaround to address the problem.
• It also gives you the option to upload your results to Microsoft so that a support engineer can review them.
• If not, you can try reinstalling Office 365 or repairing it.
• ’ 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.

The update was released on schedule and successfully resolved the problem. Outlook 2016 freezes when accessing calendar.This happen right after Microsoft Office security patches installed. With the release of the new Outlook app, Microsoft has begun to shift its focus away from the classic Outlook. The classic Outlook will most likely stop crashing once you have created the FORMS2 folder.

This step creates detailed information about your Outlook configuration and provides solutions for any known issues that are detected. It also gives you the option to upload your results to Microsoft so that a support engineer can review them. If the problem no longer occurs, it confirms that one of the add-ins that you just disabled was causing the issue. After that, Outlook will check for and install any available updates. Once the Outlook update process is complete, reopen the Outlook application. Again, check if Microsoft Outlook crashes when opening.

Way 3: Establish a New MS Outlook Account Profile

You need to repeat this process until you identify the add-in that causes Outlook to crash. Once you find it, remove it from Outlook by selecting it and then clicking the "Remove" button. Had this issue on my wifes W10 laptop with Outlook 2016 recently. Found this thread, was about to try the fix update this morning but Windows wanted to do an update automatically.