Check this out. This was my fix for a brand new build for my friend to play mostly dayz standalone with the battleeye client. Something with the new GeForce GTX 960 graphic cards, the "GeForce experience" app was giving me the issue. Probably because of the game optimizer is messing with permissions. :/ After the third reformat and two days of work trying all the tricks, searching for fixes, installing, uninstalling, playing with permissions and driving us crazy. it worked fine with the first install on a reformatted system being a network driver, steam then dayz (it worked ..just gave a error about graphics memory.. wonder why?... lmao). After installing the GeForce driver pack(through the windows updater), Hello failed install CMD. I uninstalled the "experience" app and the 3D drivers(he didn't need them now) in the control panel and GODS BE PRAISED..... SUCCESS...installed the other drivers and programs he needed and it worked fine. I had another friend I had to do the same with (I gave him bare bone drivers instead of the bloated drivers on the second reformat... I hate to say it but your graphics update maybe a problem. Dare I say..... Nvidia was my problem :c