What cataclysmic event could occur in this program that would cause it to crash soooo hard that it corrupts your operating system? It's not the first time something like that has happened in my home, and this as happened to me twice already. Both, coincidentally, were in the PMDG 747 V1.2. (really the only plane I fly right now, so others have not been tested as vigorously yet.)
Fist time was in the middle of the atlantic, upon opening IE7, the second was on approach to St. Maarten, just minutes before landing (FlyTampa scenery, AES active). Both instances locked my computer and corrupted my system config to the point where attempting to start windows freezes the PC.
Is the sim trying to tell me something here?