I've had this problem for ages; ever since trying to apply windowed settings. The game won't boot at all (Steam version)
I've tried doing the suggested compatibility settings; tried disabling the windowed mode using steam properties; tried re installing steam and GTA itself; even gone as far as to restore my entire system. Nothing has worked!!!
Anyone got any suggestions which might solve the issue.. The issue is only with GTA.
EDIT: The problem is now fixed. I swapped out my HDMI cable for a VGA and changed the DEP settings; now working fine.
Why do people do it?