How to update Nvidia DLSS version

I honestly didn’t know that you could update Nvidia’s DLSS version. Just go to the path C:\XboxGames\Microsoft Flight Simulator\Content look for the nvngx_dlss.dll file and overwrite it with the one in the link, obviously I recommend making a backup of the file first. This procedure also works for other DLSS compatible games. In the Sim it is updated to 2.4 while the most recent link is to 3.1.1.

One would think that Asobo would implement this update on it’s own.
Guess not.

I suspect that if they test it against version X and include that in the MSFS build, they can’t validate issues if people install version Y. Lets face it, NVidia aren’t exactly renowned for issue free updates.

Hi there,
Welcome back to the forums! We ask that people not use General Discussion for help, advice, or troubleshooting. Please use Community Support in the future. I have moved your topic.

On my system, the folder C:\XboxGames\Microsoft Flight Simulator\Content exists but it is empty! Where else could the file be?

With my graphics card (GTX1080) this does not affect … but I still wanted to update the version of nvngx_dlss.dll (version installed by default in my version (PC/Store) of MSFS 2020 (

I updated to the version of nvngx_dlss_3.1.11.0 and there were no CTDs.

After making a backup copy, I overwrote in:
C:\Program Files\WindowsApps\Microsoft.FlightSimulator_1.31.22.0_x64__8wekyb3d8bbwe

With GPU–Z in Tab\Advanced\NVIDIA DLSS\ run a scan on all your hard drives for nvngx.dll

Hi there, may I ask how you managed to replace it on the windows apps folder? It doesn’t let me delete or replace files

Nothing specific. Is yours the MS/Store version? Have you located the right folder?

C:\Program Files\WindowsApps\Microsoft.FlightSimulator_1.35.18.0_x64__8wekyb3d8bbwe