If you are trying to access Microsoft Teams on your Windows 7/8/10/11 Operating System and you get a JavaScript pop-up error that says "error occurred in the main process" there here are some troubleshooting steps that you can try to fix the issue.
Step 1: Clear Teams cache
The first thing that you should do is close the Teams app and open Run and open location %appdata%\Microsoft\Teams and delete all folders within it and try to login to Teams again.
Step 2: Check for Updates
Make sure that your Teams app is up-to-date.
Step 3: Stable Internet Connection
Make sure that you have a stable internet connection, try to access Teams using a different connection if possible.
Step 4: Check Proxy Settings.
The way you have configured Proxies on your device can cause issues with Teams, make sure they are set correctly.
Step 5: Firewall and Antivirus.
Make sure the firewall or antivirus on your system is not blocking access to Teams.
Step 6: Reinstall Teams.
Try to un-install Teams and reinstall it.
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Rakesh (He/Him) has over 14+ years of experience in Web and Application development. He is the author of insightful How-To articles for Code2care.
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