Try a different computer, it looks like you've already gone through with troubleshooting everything. Honestly, the fact that you mention an Intel graphics card makes me jump to conclusions and think that is probably the issue.
P.S. There's the options ini thing. Have you tried that?
And I just found this: https://www.reddit.c...he_game_but_im/
Of course I tried the options.ini. Various times in different ways. I just think that this PC was able to run the game a few years ago and this is the only PC I have. I had a worse PC before and I could run the game just fine.