Many users frequently report issues with Microsoft Outlook crashing, regardless of whether the installation is new or old. One common issue with Outlook is that it occasionally closes unexpectedly. Running the latest version of Outlook ensures you have Fix Outlook Support the most recent fixes and updates.

I ran the Classic Outlook Advanced Diagnostics troubleshooter but that did not provide any useful information. I also ran the Classic Outlook Calendar Check troubleshooter, but that was useless. The first file in the report said that the troubleshooter could Fix Outlook Support not connect because Outlook was not connected to an Exchange server. We often install Add-ins in Outlook to enhance Outlook’s functionality.

Download the latest updates by visiting your antivirus software vendor’s website. To manage your mailbox by reducing the size of the Outlook data file, see Reduce the size of Outlook Data Files (.pst and .ost). I have a user whose Outlook keeps freezing/crashing, and it started right after installing the July 27th updates.

As your mailbox size increases, more resources are required to open each folder. If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file. Follow these methods to resolve the Outlook stuck on loading profile issue. If your antivirus software includes integration with Outlook, you may Fix Outlook Support experience performance issues. You can disable all Outlook integration within the antivirus software.

Depending on the answers, you could possibly skip large portions of this guide or even directly get a solution to your startup issue. Either disable caching or reduce the cache from unlimited, 12 months or whatever it is, to 3-6 months, all other data, the user would have to click ‘access on server’ or some other similar verbiage. You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities.

If you’re still having problems, you can try resetting your Windows Firewall settings back to default. Once the add-ins are disabled, close Outlook 2016 and restart the application normally to check whether it now opens as normal or not. You can determine if it’s corrupted by creating a new profile and changing which profile is used when Outlook starts.

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.

This efficiently fixes the “Outlook freezes when sending email” error. Repairing your Office programs can resolve issues with Outlook not responding or freezing. Errors in Microsoft 365 files are repaired automatically. At Insight IT, we use tools like Fix Outlook Support Outlook advanced diagnostics, Microsoft Support and Recovery Assistant, and deep knowledge of classic outlook advanced to resolve issues with Outlook. Corrupted or broken files in Microsoft Office or Microsoft 365 can cause serious performance issues. Use the repair your office option in Control Panel to get back on track.

You must have at least three user accounts on the computer to complete these steps. You may have to contact your antivirus software vendor to determine how to configure the software to exclude any integration with Outlook or to exclude scanning in Outlook. For a list of antivirus software vendors, see Consumer antivirus software providers for Windows.

Uninstalling this part of your virus scanner is strongly advised