MSFS shutting down right after load screen popped up (MSFS is not downloaded yet, just the 1,8gb launcher on steam)

Hey, so i just downloaded MSFS launcher after cpu upgrade from i5-9600KF to Ryzen 9 5900X. At first the launcher wanted msplat.dll which was missing so I added it to files. Then it showed error about missing media feature pack which I downloaded as well. Then the launcher began to start up, went fullscreen with black screen and loading circle at bottom right corner but after 5 seconds it just shuts down. Any ideas on how to fix that please ?

Moved to Install, Performance & Graphics for community assistance.

Hi @SemlerHC , & welcome to the forums. :slightly_smiling_face:

Since the missing file & pack are both media-related, have a look at this article to see it if helps:
How to fix a black loading screen – Microsoft Flight Simulator Support (

Thank you for your advice. Even tho your guide didn’t fix it but rather made me try something that fixed my game.

To fix this problem I needed to got to Steam>Right click on Microsoft Flight Simulator and choose properties. Then type under General tab in Launch options “-threads 12” if you have 12 core cpu. if your CPU has 6 core and 12 threads don’t be mistaken and type “threads 6”.

This fixed it