All that you can do is provide the specifics of your system and the crash logs to email@example.com — if they can manage to duplicate it, or get more reports of such difficulties, then maybe they can fix it. It might be possible to pursue it with the folks who create the QT libraries — they have a lot more users, so might have more data on this. It would help if we knew which specific QT version is being used.
The other possibility is that there’s something in your Windows installation which is causing this difficulty — that’s a deep rabbit hole, and a lot of effort, but if you were inclined, you could start with a fresh install of Windows and see if the problem persists.
Computing hardware is so cheap these days, it’s practically disposable, and one could pretty easily pick up a suitable new computer while shopping for groceries (seriously, at the local Wal-Mart, see if they have an RCA Cambio tablet). The community has noted some known working configurations at: http://www.shapeoko.com/wiki/index.php/Carbide_Motion_Machine_Control_Software#Known_working_configurations — might want to just grab something listed there, or similar hardware.
Alternately, some users have plugged in Raspberry Pi computers and run the machines headless using remote access. I’ve been tempted to try replacing my controller w/ a Smoothieboard and to use a Viki 2 LCD.