How to Fix the “A JavaScript error occurred in the main process” Error in Windows 11 & 10

Encountering the Windows 11 Javascript error is a common issue, particularly if you are a frequent browser user. Javascript is a programming language utilized to make web pages more interactive.

When a user visits a webpage that includes Javascript, the web browser executes the script. This means that websites can integrate programs running directly inside the browser rather than necessitating users to download and install an application on their computer.

If you encounter a Javascript error, it is likely because your browser cannot process the Javascript code, usually due to an outdated version of the software or browser.

What causes the JavaScript Error in Windows?

Various factors can cause the Windows 11 Javascript error, such as not enabling Javascript in your browser, using an outdated browser, or antivirus blocking Javascript for security reasons. Additionally, corrupted files, browser cache, or browser extensions may lead to Javascript errors.

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Fix “A JavaScript error occurred in the main process” Error

To fix the Windows 11 Javascript error, you can try several solutions, such as enabling Javascript and Active Scripting in your browser settings, deleting temporary internet files, or checking and installing Windows updates.

Let’s have a look at these solutions in detail.

1. Enable Javascript in your browser

Disabling Javascript does not ensure complete protection from security risks, but using secure and high-performance browsers for your online activities can be a safety measure.

1. Open your browser, such as Chrome, and click on the three horizontal dots at the top right corner to open the Menu.

2. Select “Settings.”

chrome settings
chrome settings

3. Click on the “Privacy and Security” option from the left and then click on “JavaScript” option under the Content section.

4. Set the radio button to “Sites can use Javascript“.

2. Enable Active Scripting in Internet Security

1. Press the Windows + R keys simultaneously to open the Run dialog box, and type “inetcpl.cpl” to open Internet Properties.

2. Select the “Security” tab and click on “Custom level.”

3. Navigate to the “Scripting” section, click on “Enable,” and then press “OK.”

4. Click “Yes” on the pop-up window to apply the changes.

Restart your PC and check if the problem persists.

3. Delete temporary browsing files

1. Press the Windows + R keys simultaneously to open the Run dialog box, and type “inetcpl.cpl” to open Internet Properties.

2. Select the “General” tab and under “Browsing History,” click the “Delete” button.

3. Check “Temporary Internet Files,” “Cookies,” and “History” in the dialog box that pops up and press “Delete.”

Check if the problem still persists after performing this step.

4. Install Windows Updates

1. Press the Windows + I keys to open Settings.

2. Select “Windows Update” on the left pane.

3. Click on “Check for updates.”

windows update
windows update

Restart your PC once the updates finish installing.

Please note that disabling Javascript does not guarantee protection from all possible threats. Malicious Javascript can be used to hijack sensitive data or even to trick users into downloading malware or revealing personal information. Therefore, it is always advisable to use secure and high-performance browsers for all your online activities.

If you experience any issues with your browser, you may follow the expert guide on how to fix it. We hope you have found a solution to the Javascript error on your Windows 11 PC.

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Posted by
Bhanu Pratap

Hi! I am Bhanu Pratap, co-founder of Yorker Media Group. A die-heart fan of tech and keeps track of every little happening of the same. When not writing, I usually keep myself busy on YouTube making and exploring new and awesome tech content.

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