Thank you for the update Dalladon.

If I understood that correctly, DirectX 9 mode works relatively well on the 970M, but you can only get DirectX 11 to work with your integrated graphics card? That makes it sounds like the 970M is the issue or something is interfering with it specifically.

Do you have any overlays open (Geforce Experience, Steam or Discord overlay) or any other programs running while playing the game? If so, try disabling or closing them.

Try setting the game to Windows 7 Compatibility mode. Right-click on the exe file and select 'Properties,' then select 'Compatibility' and choose Windows 7. Also, make sure you anti-virus is not interfering with the game.

Were you able to try the clean boot? You didn't comment on that in your last post.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!