Fix: Mu Online client stopped working on incompatible Intel HD graphics driver

The legacy game Mu Online game specifically Mu Agartha/Phillippines server (URL: http://muonline.ph) runs well on a Windows 10 (Home edition) machine with some tweak on compatibility like running the program as Administrator and in Windows 7 compatible mode . Also the game is using the default power-saving graphics card Intel HD Graphics 520. The MU Online game client is running on the following hardware specifications:

PC brand/model: Lenovo Ideapad 300 Laptop

Processor:  Intel Core(TM) i7-6500U 2.50 Ghz 2 Cores

Intel(R) HD Graphics 520 (power-saver) / AMD Radeon(TM) R5 M330 (high performance)

Then it came to a point the Mu client stopped working. Launching the game will only show the launcher and game guard. Then after that, the main executable named main.exe will not load at all.

I did investigation on the driver version being used. I noticed the Intel HD Graphics 520 driver has two versions installed on the machine. Take a look at this screenshot:

The system is currently using the Intel HD 520 version 24.20.100.6286 graphics driver at that time and it probably was updated from version 20.19.15.4352 to 24.20.100.6286.

What I did to fix the issue is to rollback the driver to version 20.19.15.4352 and made the Mu client working again.

Or, if the older driver is not installed you can download it from the Intel official website.

I hope this can help you.

If you have some similar experience regarding launching issue on the Mu Online client, kindly post it in the comments. Thank you.