Out of a sudden, my aircraft completely shuts down to cold and dark after 5-10 mins. Yesterday I lost power at FL250 in a PMDG 737-600, and today in the LVL-D 767 during takeoff. I have checked, that there are no random failures set up in the sim.

Some more info: I have discovered a text-file created in my temp-folder every time I exit FS, and have never seen this before, since I empty the folder daily. See attachment.