You could try uploading DxDiag files.

and your rpt file from you appdata folder.

in my appdata folder doesn`t excist a arma 3 folder

http://feedback.arma3.com/how-to-user.html.html

Look here for how to report a crash.

Can you try start other DX11 games?

Had this to. SHouted at my laptop and it worked. Also i updated my GPU drivers Checked DIrectx. and set my PRIM grapics controller To my GPU instad of my DAM CPU. note i have a Dell XPS L502z laptop Nvidia Geforce GT 550M Intel I7 Quad core 2.5Ghz turbo boost to 2.7Ghz.

And Astaroth in my case i could start other games using DX11 and software Using DX11 or 10. SO idk what the issue was.

try running DXSETUP.exe located at "arma3/DirectX".

The latest drivers for your graphics card are version 320.49, are you sure that's the version you're running?

Okay ... i think i found the problem. All Directx11 games runs on my pc but! the directx 10 games dont run z.b Resident evil 5 you can run resi5 on dx 9 or 10 on 9 it runs on 10 comes an error. has anyone an other good idea.
Thanks for help guys :)

NOt really.. Your gpu isnt really that new btw but that aint the issue. Seems like a irect x problem instead of a clientside issue or arma issue.

Have you run DXSETUP.exe yet?

hi first problem solved! huray arma 3 runs i installed a older gpu driver v. 314.07
but my next problem is i have de arma 3 version 0.71 and i can only play multiplayer on [DEV] servers ... my friends got version 0.70 and all server runs how can i get this version ? yesterday i got an other version 0.73 and today i start steam and baam arma 3 update 0.71 wtf?

Arma 3 > Properties > BETAS > NONE- opt out of all betas

Open Steam, right click on Arma 3 in your library, click "Properties", go to the "BETAS" tab, there's a drop-down menu, select "NONE - Opt out of all beta programs", click OK and close the properties. You will now get a little update and you can play with your friends. Enjoy!

Graphic driver issue.