tbehrang

I finally found the solution: Solution: Disable Antivirus --(My Anti virus is kaspersky-I didn't really disable it,I just disable System Watcher and application control but other components like antivirus firewall .etc. are running like charm) it seams it's something like maleware. before this solution ,I couldn't run some games apps via viveport but Steam games don't have any problems.reinstallation doesn't work or any other ways. So solution for me is disabling all Antivirus (windows 10 defenders and kaspersky and node or anything els or just disable the part like mine. :)