Roblox: Application Encountered An Unrecoverable Error [FIXED]

You Can Solve Roblox Application Encountered An Unrecoverable Error By Turning On Virtualization, Easy Anti-Cheats and Clearing Roblox Cache Files

Many players log in to Roblox every day so that they can enjoy some of their favourite games on the site. As players continue to increase and content keeps pouring in, issues and errors will inevitably arise. One such problem is Roblox:The application encountered an unrecoverable error’. If you are in the same dilemma: Don’t worry as we go over all the possible solutions to get you out and back to running on track.

Key Takeaways
  • Roblox’s The application encountered an unrecoverable error that generally happens when there is a problem validating some game files.
  • The error started happening after the Byfron Update to players when using the local client.

  • Try the following methods to fix the said error:
    • Try turning off virtualization from your bios as the new anti-cheat doesn’t like virtual machines working alongside the game client.
    • Close any other anti-cheats that might be running on your system.
    • Clear your Roblox Cache to make sure it isn’t any corrupted cache files.
    • As a last resort, Reinstall your Roblox Client.

What Causes Roblox The Application Encountered An Unrecoverable Error?

Roblox players have been plagued with the error ever since the Byfron update. As cheaters constantly plagued the community, Roblox finally decided to take action. However, like any big update, it also created some problems. One of the reasons causing the aforementioned error is a result of one or many of the following factors:

  • Corrupted Game Files
  • Broken Roblox Anti-Cheat
  • Virtualization tools affecting the application access
  • Bad Local Cache Files

Any of the above-mentioned causes can be the root of the Roblox ‘The application encountered an unrecoverable error’. So, the best way to proceed would be to go through with all the solutions below in order. This way, you would be able to find the cause for yourself as well by the process of elimination. See what fixes the issue so you can know what you did for future reference.

Turn Off Virtualization

Virtualization is a major culprit for the said error. It is a generally useless setting for anyone but power users or developers. Turning it off has proven to be fruitful for many players. To do so, you could do one of the following: 

Disable From BIOS

The best way to disable virtualization would be via your BIOS. To do so:

  1. Search for System Information in Taskbar.
    Finding the model and make for Roblox Unrecoverable error
    Opening SysInfo (Image Captured by eXputer)
  2. Now, if you have a Desktop: Look for BaseBoard Product and BaseBoard Version.
  3. If you have a Laptop, just look for System Model.
    Noting the make and model of your device for unrecoverable error
    Finding Motherboard or Laptop Make (Image Copyrighted by eXputer)
  4. Now that you have your laptop or motherboard model, you can search for How to Boot into BIOS followed by your specific model.
  5. Once in BIOS, you can disable the setting generally by going to the Advanced Tab.  

Do note that sometimes a problem faced in this case is that the option is either unavailable or locked out. In this case, consider using the next method.

Disable Via Programs & Features

To turn off virtualization for fixing Roblox encountered an unrecoverable error, you can also use Windows itself:

  1. Search for Turn Windows Features on or off in Taskbar.
    turning off virtualization to fix robloxs unreocverable error
    Getting to Windows Features (Image by eXputer)
  2. Look for Hyper-V and uncheck the box to disable the feature.
    Turning Virtualization Off
    Unchecking Virtualization Options (Image by eXputer)
  3. Repeat the same step for the Virtual Machine Platform and Windows Hypervisor Platform.
  4. Click on Ok to save the changes.

Restart your computer so the changes are in effect.

Turn Off All Anti-Cheats 

Byfron’s anti-cheat for Roblox doesn’t like any other counter-products running at the same time as itself. Turning off any others can be a valid way to fix the error. Some notable anti-cheats in this case are:

  • Riot’s Vanguard
  • Valve Anti-Cheat
  • BattlEye

To do so, simply:

  1. Move to your Taskbar and see which of the above-mentioned anti-cheats are currently running.
    finding other anti cheats to turn off for roblox annti cheat
    Finding Currently Running Anti-Cheats (Image by eXputer)
  2. Hover over their icon and Right-Click.
    closing other anti cheats to fix the unrecoverable error
    Exiting Other Anti-Cheats (Image Captured by eXputer)
  3. Click on Exit.

Clear Cache Files

Many players have reported that switching to their alternate accounts makes the application encounter an unrecoverable error go away. This points to bad local cache storage for Roblox. Clearing the cache could potentially make the error go away. To do so, simply:

  1. Press Win+R to open the Run window.
  2. Type %localappdata% and press Enter.
    Opening App data for roblox's unrecoverable error
    Opening Local Appdata Folder (Image Copyrighted by eXputer)
  3. Now keep pressing till you have the Roblox folder highlighted.
    deleting roblox local cachce
    Deleting Roblox’s Local Cache (Image by eXputer)
  4. Once you are on the folder, Right-Click and select the Delete option to remove the folder.

Reinstall Roblox Client

If nothing in this guide manages to fix the error. You must uninstall your current Roblox Client and install it from Microsoft Store. This is because the Microsoft version is relatively bug-free no matter what settings you’re defaulted to. To do so:

  1. Search for Add or Remove Programs.
    removing roblox client to fix the application encountered an unrecoverable error
    Getting to Add or Remove Programs (Image by eXputer)
  2. Search for Roblox in Search this List.
    Searching for Roblox to uninstall so the unrecoverable error can be fixed
    Search for Roblox to Uninstall (Image Copyrighted by eXputer)
  3. Select the application and Click on Uninstall.
  4. Follow the Wizard along, and you will be done.

Once done, just reinstall the game through Microsoft Store.

This wraps up our guide on how to fix Roblox’s The application encountered an unrecoverable error. We are confident you could get around the error by following one of the mentioned solutions in our guide. If not, we would advise you to contact Roblox Support and open up a ticket.

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Ayyoun Ali


Ayyoun is a Senior Writer & Editor for Error Fixes and Game Settings guides on eXputer. He’s been passionate about games and technology since he got his hands on his first console, the PS1. He’s got a Software Engineering background and loves to play games for entertainment and understand them from a technical perspective. He has a knack for uncovering solutions for the latest games and older ones and presenting them in easy-to-follow guides for his audience.  Experience: 7+ years || Education: Bachelor's in Software Engineering || Worked For VeryAli Gaming and IGN || Written 200+ Articles || Senior Editor For Game Errors & Settings

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