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Solved: How do i fix “A JavaScript Error Occurred in the Main Process” after installing FortiClient software in Windows?

This article describes how to fix the A JavaScript Error Occurred in the Main Process’ after installing the FortiClient software in Windows.

Solved: How do i fix "A JavaScript Error Occurred in the Main Process" after installing FortiClient software in Windows?


FortiClient Software installed in a Windows Machine


Step 1: Uninstall the Forticlent Software using the FortiClient remover tool. Follow the steps to Remove the FortiClient Software from the Windows End-point. Reboot the Windows Machine after the Uninstallation process is completed.

Step 2: Install the latest version of the Microsoft Visual C++ Redistributable. It is possible to download the files from the above link.

Step 3: Uninstall any old C++ Redistributable found in Control Panel. Follow the article (Uninstall or remove apps and programs in Windows) to remove those old C++ services. Once removed, restart the windows machine.

Step 4: Reinstall the Intended FortiClient Version and run the application as an administrator.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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