Just to bump this topic again for the sake of MSI True Colour users who are having the issue.
Adding to my above comment, just removing MSI true colour did not help, the game still crashed the graphics card on exit (but not when using task manager to exit), however, I had noticed that after the last windows update, MSI true colour suddently stopped working, as it needed to be upgraded to a new version, which I foolishly did, and of course my issue continued. What I have now done is, restored my system to the recent windows update, which again, broke MSI True Colour, then rather than updating true colour, I uninstalled it and now I can exit without any graphical crashes.