The three errors I get are:
0x80000002 - STATUS_DATATYPE_MISALIGNMENT
0xC0000005 - STATUS_ACCESS_VIOLATION
0xC0000409 - STATUS_STACK_BUFFER_OVERRUN
Every time I launch Arma 3 through the launcher, the game crashes and gives me one of these three errors before loading into the game. The error I get seems to be random, although the second and third errors that I've listed above are more common than the first one.
This error started appearing a week ago. I've logged hundreds of hours in Arma before this, and have never had this problem. I updated all my GPU drivers, checked all my recently installed assorted drivers, ran MemTest86 for hours (no errors), and fully reinstalled Arma. I'd be glad to provide crash logs if needed.
Thanks for your help!