I have a setup pretty similar to yours, Windows 7 pro 64-bit (SP1), i7-4770K, 16 GB RAM, GTX 980 Ti, Samsung 840 Pro SSD.
I can't launch the game at all, I have to do the work-around by launching bg3_dx11.exe as admin, holding shift, and praying it would start (killing the process if it doesn't, and repeating the whole business until it finally starts after usually 3-10 times)... I tried double-clicking the "Play" button (it's "Play", do you see "Launch"?) but it makes no difference.
But once it starts, it's stable at the exception of the frequent freezes, it has never crashed in many hours of testing. I have never seen the low memory window.
Are you using the Steam version or the GOG version?
Are you sure that double-clicking "Launch" (or "Play"), you are not launching two instances of the game?
Do you have enough virtual memory?
Is that Windows 7 Pro, or another flavour ?
Maybe you can try by launching bg3_dx11.exe directly as admin, but I doubt it would change anything.
Last edited by Redglyph; 18/10/20 06:51 PM.