ironhide80

Thank you very much for all replies! Unfortunately, I was unable to bring back that checkbox via troubleshooting. I had to clean install win10 and that brought the checkbox back. Since the checkbox went missing I've noticed a big drop in FSX performance. I thought that the missing DircectX 10 Preview was the reason because I always had it checked. However after installing windows 10 from the scratch and getting DirectX10 preview back the performance is still pretty bad. I'm not sure what happened but some time ago there was Windows update that could have caused performance degradation. I'm not a computer wizard so at this point I'm going to put the FSX aside. Once again, thanks a lot for all the input!

No, I'm not using it. At this moment after re-installing I have no add-ons at all. I did however installed Qualitywings 787 few weeks ago, and it caused problems with level D 767 dll file. I ended up uninstalling 787 and I had to reinstall FSX to run 767 again. I'm not sure if I had Preview DirectX 10 checkbox after reinstalling few weeks ago.I just discovered it missing yesterday.

Hello everyone! I used to have Preview DirectX10 checkbox in settings but now it's gone missing. I did extensive research online but none of the fixes that helped others is working for me. I'm running FSX-SE on Win10. Intel(R) Core(TM) i7-4710HQ CPU @ 2.50GHz NAVIDIA GeForce GTX 860M, 16GB RAM. I already fully uninstalled it and reinstalled but it didn’t help. I was looking for SweetFX files like some other users were reporting on other forums but I have none of those files. I feel like I run out of other options besides formatting everything which I’m trying to avoid. Any help would be really appreciated!!! Thanks!