Hi - sorry about the trouble! This is probably worth making a separate thread for. More info would be helpful - what exactly you mean by "crash", if there's an error message, if there's any error or stack trace at the end of the starsector.log file.
I'm guessing that you mean the game just crashes with no error message. In this case, there should be a file named hs_err_pidXXXXXX.log, where the X's are a bunch of numbers, somewhere in the game folder. Rather, a bunch of these, one for each crash. Seeing the contents of the latest one of these would be helpful.
And, finally, some basic things things to try:
1) Rebooting. In particular, doing "Restart" instead of "Shut down" - counter-intuitively, restart can reset more things in windows than a shutdown
2) Running the game as administrator, and/or in compatibility mode for windows 95/6/XP
3) Checking what else you have running, in particular stuff MSI Afterburner, or video capture software can sometimes cause problems. So could an anti-virus, depending, though I'm of course hesitant to suggest turning that off.
But, yeah, if you can find the hs_err_pid log file, that would likely help to see.