How to Fix Windows Roblox The Application Encountered an Unrecoverable Error

Have you encountered the “The Application Encountered an Unrecoverable Error” error crashing your Roblox client while trying to join a Roblox experience through a web browser? If so, something went wrong and crashed Roblox.

The main causes of this error can be interference from the browser, running Roblox in a virtual machine, or misconfigured BIOS settings. The error message advises users to share crash dumps with Roblox support to diagnose the problem. Before doing this, perform the checks and fixes mentioned below.

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1. Apply some basic fixes

Start resolving the issue by applying these basic fixes, which may stop Roblox from crashing immediately:

Whitelist Roblox in Windows Defender (see How to allow an app through Windows Defender). Also, temporarily turn off third-party antivirus software.
Turn off any anti-cheat software you use, even those not directly related to Roblox.
Disable other programs running in parallel with Roblox to ensure your system does not crash due to lack of resources.
Run Roblox as an administrator to give Roblox a higher priority, which can prevent the game from crashing.

If none of the above checks resolve the error, apply the remaining fixes.

2. Use the Microsoft Store app until the issue is resolved

Roblox users report that the bug in question only affects those who try to join the Roblox experience from the web, not the Roblox Microsoft Store app. Therefore, if you experience crashes when joining the experience through the Roblox website, please download the Roblox app from the Microsoft Store and join the experience through it.

Until the issue is resolved, continue to use the Microsoft Store app to play the Roblox experience.

3. Don’t run Roblox on a virtual machine

As Roblox staff reported on the Roblox Developer Forums, Roblox does not allow the Roblox experience to be played on a virtual machine. When someone tries to access the Roblox experience in this way, Hyperion will suddenly crash the process.

An open laptop sits on a windowsill with a residential landscape in the background.

Are you also trying to run Roblox Player on a virtual machine, but the client crashes? If so, this could be the cause of the error. Turn off the virtual machine and run Roblox by installing the client on your operating system; hopefully, nothing will go wrong.

If you don’t use a virtual machine but still get the “ The Application Encountered an Unrecoverable Error error, you can enable virtualization in the BIOS settings.

4. Disable Virtualization from the BIOS

Virtualization allows Windows users to emulate another operating system, such as Linux. Enabling this feature on Windows may cause the Roblox client to crash, and Roblox staff recommend turning it off through the BIOS. Therefore, you should make sure it is disabled and disable it if necessary.

Turning off virtualization and accessing the BIOS varies from manufacturer to manufacturer. Here’s how to turn off virtualization on a Dell device:

Shut down your Windows PC and then turn it back on.
Press F2 when the Dell logo appears on your screen; this will boot your device into the BIOS.
Go to Advanced > Virtualization or Virtualization Support > Virtualization.
Click Intel Virtualization Technology (VT) and uncheck the box next to Enable Intel Virtualization Technology (VT).
Click Intel VT for Direct I/O and uncheck the box next to Enable Intel VT for Direct I/O.

If you are using a device from another manufacturer, visit their official website for steps to disable virtualization.

5. Check for browser interference

If virtualization is not yet enabled and you are not using any virtual machines, check for browser interference and make sure it is not causing the error.

To confirm this, switch to another browser and run the Roblox experience there. If you do not experience the error in another browser, this is a problem specific to your primary browser. In this case, you can take the following steps to rule out browser interference:
However, if you also experience the error on other browsers, browser interference may not be the cause. In this case, proceed with applying the rest of the fixes.

6. Delete Roblox Temporary Files

Corruption of cache files can also lead to the discussed error. To ensure that outdated temporary files do not cause the problem, follow these steps to delete them:

Press Win + R.
Type “%localappdata%” and press Enter.
Navigate to the Temptemp folder.
Right-click Roblox folder and click Delete.

7. Report the problem to the Roblox Support Team

If none of the above fixes resolve the issue, you should follow the instructions in the error message: Get a crash dump and send it to Roblox. Please follow the steps below:

Create a JSON file in the following location:
```
%LOCALAPPDATA%\Roblox\Versions<your-current-client-version-here>\ClientSettings\ClientAppSettings.json
```
(Create the subfolders if they don’t already exist)
Open the newly created file, add the following text and save it:
```
{"DFIntWriteFullDmpPercent": 100}
```
Run Roblox and let it crash.
Follow the instructions on the Roblox website to post a bug report.
Attach the crash dump file and log files to the bug report from one of the following locations:
```
%UserProfile%\AppData\Local\Roblox\logs
%UserProfile%\AppData\Local\Roblox\logs\crashes
```

8. Reinstall the Roblox Client

If your Roblox installation is corrupted, it may also crash with the “the application encountered an unrecoverable error ” error. To make sure this isn’t the case, uninstall the previous installation and reinstall Roblox from scratch. If you don’t know how to do this, see our guide on how to uninstall any software on Windows.

After uninstalling the Roblox client, navigate to C:\Users\<your username>\AppData\Local and delete the Roblox folder. Then, head to the official Roblox website and reinstall the Roblox client. You should avoid downloading the Roblox client from third-party sources, as unsigned third-party applications can easily cause problems.

Don’t Let Roblox Crash on Windows

Seeing Roblox crash and display annoying errors can be a bit disconcerting. You should now have a better understanding of what causes the errors in question. Additionally, applying the basic fixes discussed above will resolve the issue. If that doesn’t work, report the issue to Roblox support. They will diagnose the problem for you and help you resolve it.

Like the above error, Roblox can also crash due to many other errors. If you encounter these problems, there is no need to worry as all of these issues are easy to fix.