However, some might be incompatible with your Outlook version and thus, cause conflicts leading to crashes. Therefore, you can try disabling unnecessary add-ins to stabilize Outlook and its workflow. For that, we first need to find out which is the faulty add-in by running Outlook in Safe mode. This means Outlook will run with limited features and without any add-ins enabled.
Solved: "Microsoft Outlook Keeps Crashing" Error in 2025
How do I repair my Microsoft Outlook?
It will resolve the Microsoft Outlook crashing issue to some extent. Follow the given ways along with their steps to fix the error and access your files. Try steps 1 through 3 in order until the issue is cleared. 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. Is the classic Outlook email client crashing when you create or open a new email? If so, Microsoft suggests creating a new FORMS2 folder to Step-by-step guide for Outlook stuck on profile fix the problem.
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 An outdated version can also be a cause of why Outlook keeps crashing unexpectedly.

Way 2: Open Outlook by Safe Mode and Disable Additional Add-Ins
We had the same issue today (Windows Server 2016 RDS + Microsoft Office 365 Apps for Enterprise). Next, open the Run dialog box, type %localappdata%\Microsoft, and press Enter. Right-click on an empty space, hover over "New" and select "Folder." Name the folder FORMS2. If you receive a prompt indicating that the FORMS2 folder already exists, replace the old FORMS2 folder with the new one.
Outlook Intermittently Crashing After 2025-04 Updates

We’re getting reports on that here at my service desk also. Once the file is re-written, relaunch the apps and everything is stable. The only other change to the Exchange Server was a certificate update for IIS. This is a standard DigiCert wildcard cert that we have replaced every year with no issues. Priyanka Kumari is a technical content writer in the fields of Email Migration, Data Recovery, Cloud Migration, and File Management. She is dedicated to simplifying complex technology terminologies for all users.
- If you receive a prompt indicating that the FORMS2 folder already exists, replace the old FORMS2 folder with the new one.
- You need to repeat this process until you identify the add-in that causes Outlook to crash.
- After that, Outlook will check for and install any available updates.
- Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
- I didn’t have to reboot, but did have to get users signed off before running the third command.
- Additionally, you can try the free trial tool to learn all about its functionalities and workings as well.
Drawbacks of the Manual Method
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.
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.