SOLVED! “Fatal Error! Coordinator Returned-1″ How To Fix

There is a reason why Windows is the dominant computer operating system: years of research and development have turned Windows into a solid OS. Windows users could carry out many tasks on their PC at will which is a big plus by all accounts. Still, it’s worth pointing out that Windows errors still give people a hard time every now and then. Check out this article if you keep coming across “Fatal Error! Coordinator Returned-1” as you use your computer. 

A List Of Possibilities


As your computer starts up, multiple processes and programs would spring into action in the background. One of such is Zoom, a cloud-based video communications app. The startup file of Zoom is Launch.bat and in use, it could lead to “Fatal Error! Coordinator Returned-1” on occasions. Aside from that, if the Zoom app itself is corrupted, Windows may see “Fatal Error! Coordinator Returned-1” as well. 


It’s not uncommon for apps on Windows computers to go haywire when the operating system is corrupted. As long as corruption exists in the operating system, errors would surface one after the other and “Fatal Error! Coordinator Returned-1” is a prime example. 

What You Could Do

Disable Launch.bat  

Disabling the launch.bat prevents Zoom from running on startup. By doing so, you could get rid of  “Fatal Error! Coordinator Returned-1” for most of the time. 

  • Step 1: Right-click taskbar then pick Task Manager
  • Step 2: Hit More details (if Task Manager is in compact view) and navigate to Startup tab
  • Step3: Right-click launch.bat and pick Disable
  • Step 4: Restart your device.

Uninstall And Reinstall Zoom 

Generally speaking, once it comes to “Fatal Error! Coordinator Returned-1”, Zoom is the number one suspect. Hence if you have Zoom on your PC,  you should consider uninstalling and reinstalling it at the earliest opportunity. 

  • Step 1: Press Windows + I to open the Settings 
  • Step 2: Select Apps then choose  Apps & features 
  • Step 3:  Locate Zoom, hit it and click Uninstall
  • Step 4: Proceed to click Uninstall one more time
  • Step 5: Once the uninstallation process wraps up, go to the Zoom website to download the latest version of Zoom. Run the Setup file and click yes if the user account control prompt appears to initiate the installation. After the installation finishes, restart your device and see if the error pops up as you go into the home screen. 

Take Advantage Of System Restore

If you noticed that the error started after you installed a new program or updated an existing one, you can try to restore your system to a previous point when everything was working correctly. That will remove changes made to your system which should return things to normal. To perform a System Restore, go through the following steps:

  • Step 1:  Press Windows + R to open Run dialog, type rstrui and hit enter.
  • Step 2: Click Next and in the next window, check the checkbox for Show more restore points
  • Step 3: Select a restore point where there was nothing out of the ordinary then hit Next.
  • Step 4: Click Finish then confirm the final prompt

Run Windows Store Apps Troubleshooter

Zoom is a Store app so you should run the Windows Store Apps Troubleshooter if it causes issues. That troubleshooter is designed to address issues that involve Store apps and Zoom is not an exception. 

For Windows 11

  • Step1: Press Windows + I to open Settings.
  • Step 2: Go to Systems> Troubleshoot> Other troubleshooters / Additional troubleshooters.
  • Step3: Locate Windows Store Apps and run the troubleshooter.
  • Step4:  Follow the on-screen prompts and accept any recommended fixes.

For Windows 10

  • Step 1: Press Windows + I to open Settings
  • Step 2: Navigate to Update and Security then click troubleshooter tab
  • Step 3: Locate Windows Store Apps and hit Run the troubleshooter.
  • Step 4: Follow the on-screen prompts and accept any recommended fixes

What Is A Fatal Error?

A fatal error, also called a system crash, is an error that causes a program to terminate abnormally or “crash.” A software bug or hardware failure can cause fatal errors. Fatal errors usually happen because the program has run out of memory or is trying to access invalid memory addresses.

Is Fatal System Error (C000021a) A Serious Error?

A fatal system error blue screen (c000021a), also known as a stop error or BSOD, is an error that occurs when Windows encounters a critical system failure. Such an error could be the result of hardware or software problems that lead to data loss, corruption, etc. When your PC encounters fatal system error blue screen (c000021a), it would immediately shut down to avoid damaging the operating system.

How Many Types Of Fatal Errors Exist?

Many different types of fatal error messages can appear on a PC. Some are more common than others, and some can be more serious. Here are some of the most common types of fatal error messages:

  • System Error: This is a general message indicating a problem with your system. e.g., “Windows could not start because the following file is missing or corrupt: \windows\system32\hal.dll.”, or \windows\system32\config\system.”
  • Driver Error: This message indicates a problem with one of your drivers. It can be caused by a missing or corrupt driver or a driver conflict.
  • Memory Error: This message means that your computer doesn’t have enough memory to complete the task you’re trying to do.
  • Application Error: This message means a problem with one of your applications. It can be caused by a missing or corrupt application file or a conflict between two applications.
  • Hardware Failure: This message means a problem with your hardware. It can be caused by a malfunctioning component or an incorrect BIOS setting.

How Do I Fix A Fatal Error That Has Been Detected By The Java Runtime Environment?

If you are getting the error because of a specific Java application or game, you can try updating to the latest version of Java. If that doesn’t work, you can try uninstalling and reinstalling the program.


  • Don’t let non-essential programs run on startup
  • Update the OS from time to time

Leave a Comment

Reload/Press f5 if you can't show hidden content