Windows is a very common and rather easy to use operating system and is massively popular as well. However, being popular doesn’t make it immune to the occasional bugs and glitches you might face.
In this article, we’re taking a look at how to fix the “coordinator returned -1” fatal error on Windows.
Also read: Windows 11 stuck on black screen before login: 7 Fixes
Fixing Coordinator Returned -1
Here are a few solutions you can try out.
Update your PC
The first thing you should do is to update your PC. Updating your PC will, in most cases, update your drivers and fix any issues in the process.
Check out this detailed guide to know how to update your PC here
Run the Windows Store Apps troubleshooter
Running the Windows Store Apps troubleshooter can fix any problems you might be having with apps downloaded from the Windows Store and can help get rid of the problem.
Step 1: Press the Windows key and search for Troubleshooter. Click the Corresponding search results.

Step 2: Click Additional Troubleshooters.

Step 3: Scroll down and run the Windows Store Apps Troubleshooter.

Let the troubleshooter do its thing, restart your PC and the coordinator returned-1 fatal error should be gone by then.
Reinstall Zoom
Zoom is known to throw this error message as well. The best way to get around this is by reinstalling Zoom.
Step 1: Press Windows key + X to open the Quick Access menu and click on Apps & Features.

Step 2: Look for Zoom in the list and click Uninstall.

Step 3: Now download Zoom again from the official website and install the program.

The coordinator returned-1 fatal error should be gone now.
Disable Launch.bat
There’s a batch file that runs at Windows startup for some users that can cause this problem as well. Here’s how to fix this.
Step 1: Press Windows key + X to open the Quick Access menu and click on Task Manager.

Step 2: Head over to the Startup tab, select launch.bat and click disable in the bottom right.

Now restart your PC and try again.
Run system restore
You can try restoring your system to when everything was fine to get rid of this issue.
Step 1: Press the Windows key and search for Reset this PC. Then, launch the Recovery setting from the search results.

Step 2: Click on Open System Restore.

Step 3: Select the recommended restore point and click the Next button to proceed.

You should be rid of the coordinator returned-1 fatal error now.