I have been having this problem and it only seems to occur with arma 3 whenever I launch the game and join a server I get a message in event viewer saying:
Display driver nvlddmkm stopped responding and has successfully recovered.
2 pop up windows come up aswell saying:
D3D Error - DXGI_ERROR_DEVICE_REMOVED
after that another one pops up saying:
The exception unknown software exception (0x0000dead) occurred in the application at location 0x0000000074AFDAE8