Hello everyone 
 

I just bought and installed the CSS 737 which I use with MSFS24. 

I have witnessed a very strange behavior with my computer EACH AND EVERY time I use the 737. 

The next time I reboot my computer, it enters an infinite bios loop, with no access to Windows. 

I have to fully unplug my computer for 10 mn to access Windows again. Pretty worrying. 

I don't know if their launcher plays with persistent RAM, UEFI or boot sectors but there is something. I have now un-installed their software and don't have this behavior again but I'll probably need to do a fresh reinstall of everything for security reasons. 

Some may object it is pure timely coincidence but again I observed the behavior each and every time I used the product and not anymore since I un-installed it. 

Any thoughts are welcome. The developers have been contacted and hopefully will investigate. 

 

Thanks 

Edited December 14, 2025Dec 14 by gpxe

30 minutes ago, gpxe said:

Hello everyone 
 

I just bought and installed the CSS 737 which I use with MSFS24. 
 

I have witnessed a very strange behavior with my computer EACH AND EVERY time I use the 737. 
 

The next time I reboot my computer, it enters an infinite bios loop, with no access to Windows. 
 

I have to fully unplug my computer for 10 mn to access Windows again. Pretty worrying. 
 

I don't know if their launcher plays with persistent RAM, UEFI or boot sectors but there is something. I have now un-installed their software and don't have this behavior again but I'll probably need to do a fresh reinstall of everu'yhtibg for security reasons. 

Some may object it is pure timely coincidence but again I observed the behavior each and every time I used the product and not anymore since I un-installed it. 

Any thoughts are welcome. 

 

Thanks 

Can't say I've experienced the same nor seen it reported on the discord but feel free to email the support team. 

As far as I'm concerned the CSS Launcher doesn't run with windows, it only starts with the sim (If you don't already have it open) so I don't see how it would prevent you booting into Windows if it hasn't started.

As a side note, I've personally shelved the product until the upcoming update which fixes a variety of things.