I found a reason - something happened with user account so windows started to block running new applications
I created new user account and the problem is gone
I'm glad that you find the problem and solved your issue.
Have a nice trading with Solaris and gather more coins to hold to have an extra income when txbit.io exchange will be launched.
I'm also trying to collect as many of these coins as I can. It seems to me that this will be an excellent source of additional income.