older realtek sound drivers cause crashs, not only in msfs… the nahimic service was a long time one of the big trouble maker. Additional sound-related tools like asus sonic , - suite , - radar , or some msi tools, caused that or installed old versions. You can find a lot of posts in forum about and the msfs FAQ ( e.g. / e.g.2 ) mention this since a while too. Newer ones may / should have fixed that, but e.g. the nahimic service is on my system permanent deactivated.