Got it fixed finaly found out that nvidia image scaling when you turn it on it gives black screen when i turned it off it doesnt give black screen and runs fullscreen mode but its kinda blurry

Yeah have tried that too also tried checking run program as administrator and also tried switching the compatability modes from windows 8 and 7 did that to Dayz_BE.exe DayZ_x64.exe DayZDiag_x64.exe

Reinstalled drivers worked for bit now again doesnt work tired of fixing this problem might even uninstall game and not play for some time you can close the ticket.

I only got one monitor if i understood that right i will try to do clean install of video drivers have not tried that yet.

If i force it to fullscreen it just goes black screen tried that bunch of times, also forgot to mention that tried with buldozer thing too didnt work.