how to fix a javascript error occurred in the main process

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Maintenance and Repair

How to Fix a Javascript Error in Windows 10

Last Updated: April 17, 2023 Fact Checked

This article was written by Luigi Oppido and by wikiHow staff writer, Nicole Levine, MFA . Luigi Oppido is the Owner and Operator of Pleasure Point Computers in Santa Cruz, California. Luigi has over 25 years of experience in general computer repair, data recovery, virus removal, and upgrades. He is also the host of the Computer Man Show! broadcasted on KSQD covering central California for over two years. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 58,814 times.

If you're seeing an error that says "a JavaScript error occurred in the main process" or "a fatal JavaScript error occurred" when trying to open or install Discord, there are several potential fixes. While these fixes are designed to resolve this error on Discord, they should work to resolve similar errors in other apps, including Microsoft Teams. We'll show you how to troubleshoot JavaScript errors for Discord, Microsoft Teams, and other Windows 10 apps.

Unblocking the Installer in Your Antivirus Suite

Step 1 Open your antivirus or antimalware software.

If you're using Windows Security, which comes for free with Windows, type security into the search bar and then click Windows Security .
The remaining steps will cover unblocking an installer with Windows Security, but your antivirus suite may have different menu options.

Step 2 Go to the Virus and threat protection area.

Deleting AppData and Reinstalling

Step 1 Close Discord (or the app you're trying to fix).

To be sure it's closed, press Control + Alt + Delete and click Task Manager . If you see a that the app is running, click to select it, and then click End Task . [1] X Research source
Even if you've only tried installing the app and were not successful, you should still use this method before you try to install again.

Click the folder once to select it. Don't open the folder—just select it for now.
Hold down the Shift key as you press Delete .
Click Yes .

If you don't see this folder, just skip this step.

Step 8 Uninstall Discord (or the app in question) from your PC.

Open the Windows menu and click the Settings gear.
Go to Apps > Apps & features .
Select the app and click Uninstall . If you don't see the app here, just move to the next step.
Click Uninstall to confirm.

Repairing Microsoft Visual C ++ (Microsoft Teams)

While this method is known to work for Teams, it may also resolve the same issue in other apps.

If prompted, enter your administrator password to confirm.

Running the App as an Administrator

To be sure it's closed, press Control + Alt + Delete and click Task Manager . If you see a process for the app running, click to select it, and then click End Task .

Step 2 Right-click the Discord icon on your desktop or in the Windows menu.

If you're trying to fix a different app, you'll usually see that app right here in the folder you've opened. If not, look around for a file with the app's name—it may end with ".exe."

Step 5 Right-click the app and select Properties.

Expert Q&A

Expert Interview

Thanks for reading our article! If you’d like to learn more about fixing javascript errors, check out our in-depth interview with Luigi Oppido .

↑ https://support.discord.com/hc/en-us/articles/209099387--Windows-Installer-Errors
↑ https://techcommunity.microsoft.com/t5/microsoft-teams/windows-a-javascript-error-occurred-in-the-main-process/m-p/1417805
↑ https://support.microsoft.com/en-us/windows/repair-apps-and-programs-in-windows-10-e90eefe4-d0a2-7c1b-dd59-949a9030f317

About This Article

1. Unblock the installer in your antivirus software. 2. Try deleting the app's folders in AppData and LocalAppData and then reinstalling. 3. Repair the latest version of Microsoft Visual C++ in Apps & Features. 4. Run the app as an administrator. Did this summary help you? Yes No