In T181684#2650883, @MegaBite wrote:

Right this works for me after months of making this stupid game unplayable.
Start PC up. once loaded restart computer.
Run Steam as Admin
Open task manager and got Details Tab.
Right click on beservice.exe and set Priority to High
Run DayZ from any launcher.
once server is starting, Right click on Beservice and DayZ and set the priority to high again. I can normally get the game to play until a restart.
once a restart happens I do the above it works.
Got a feeling it maybe a memory issue of some kind.

if this didnt work for me I was going to uninstall the game and leave it.