The error can be encountered on a wide range of applications, including games, streaming apps, and other apps. Some users also saw the error message as soon as they turned on the computer, indicating that a startup program is most likely affected.

What is an Unhandled exception?

This error appears when the code of an application or program is not adequately equipped to handle exceptions. As previously mentioned, the unhandled exception is one of the most common Microsoft .NET Framework errors. Some of the reasons you may see the error message are as follows:

Corrupt system files – Corrupt system files are one of the most common reasons behind the Unhandled exception error and running the DISM tool, and SFC scan should fix things. Conflicting program – If the error arises due to conflicts triggered by third-party programs, simply uninstall that application. Issues with the .NET Framework – Oftentimes, corruption or improper installation of the .NET Framework can lead to issues. System infected by malware – In many cases, users found out that it was malware or a virus on the computer that triggered the error.

Where does the Unhandled exception error occur?

There are plenty of apps and environments where you can encounter the error. Let’s quickly review some of them:

Unhandled exception in Potplayer Unhandled exception in Flutter Toolkit got an Unhandled exception Unhandled exception error in JavaScript (A Javascript error occurred in the main process uncaught exception) Unhandled exception in NodeJS Inputmapper base error Unhandled exception Unhandled exception error in AutoCad 3dxvirtuallcd Unhandled exception error Unhandled exception error in GTA Vice City Unhandled exception error in C++ (Visual Studio) Krnl Unhandled exception Unhandled exception error in HBO Max Unhandled exception error in Outlook

How do I fix the unhandled exception has occurred error?

Before we head to more complex solutions, here are a few quick tips and tricks to get things running:

Restart the computer. Disable any third-party antivirus or firewall software installed on the computer. Try running the affected application as an administrator.

If these didn’t work, the solutions listed next definitely would.

1. Run the Microsoft .NET Framework Repair Tool

  1. Go to Microsoft’s official website, and click on Download to get the Microsoft .NET Framework Repair Tool.

  2. Now, double-click on the downloaded file to run the tool.

  3. Click Yes in the UAC prompt.

  4. Tick the I have read and accept the license terms checkbox and click Next.

  5. Look at the recommended changes to get an understanding and click Next.

  6. Once the changes are made, click on Finish.

  7. Restart the computer, and you shouldn’t encounter the Unhandled exception error with the concerned app anymore.

The first fix you need to try when you encounter the unhandled exception has occurred in your application error is run the Microsoft .NET Framework Repair Tool. It is available for download on the official Microsoft website and should fix any errors in no time.

2. Re-enable NET Framework

3. Run the SFC scan

After running the SFC scan, restart the computer, and the Unhandled exception error should be fixed. This has resolved the issue for some users, and we recommend you try it.

4. Scan for malware

Possible malware interference is a viable reason for the Unhandled exception error. Making sure that your PC is protected from the effects of the malware presence is of utmost importance. In this case, we recommend a full scan. You can do so with the built-in protective software Windows Security, or with a third-party antimalware solution. There are many great antivirus tools on the market, but if you’re looking for a security solution that won’t interfere with your system, you might want to consider using ESET Internet Security. This antivirus software is a next-generation security solution that is designed to be fast, lightweight, and keep your digital life safe. This great tool blocks malicious activity, stops any spamming or data theft attempts, and warns you immediately.

5. Perform a clean boot

Your PC will now boot in a Clean boot environment. This will ensure that Windows starts with only a minimal set of drivers and programs. If the unhandled exception error doesn’t appear now, it’s likely that one of the things you disabled earlier had to do with it. We recommend first enabling the Startup apps disabled earlier one by one until the problematic one is found. In case that’s not to blame, start enabling the services next. Identifying the underlying cause may take time, but it will ensure that the problem is fixed forever. Once you are done fixing the error, do not forget to check out the ways to quickly boost the performance of your Windows 10 PC. If you have any other recommendations or questions, reach out to us in the comments section below.

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