I shall add a RPT file from the Arma 3 folder, the most recent one. more are available
Attempts to fix this have been: restarting steam, restarting PC, file integrity check, and deleting and re-installing Arma 3 via steam.
potential alternatives tried: full virus scan, checkdsk, defrag, system restore, dskcleanup and as simple as cleaning out the PC.
The temperatures are all ok on the PC, there is a dxdiag txt file available if required.
Also I run no mods