olleg, Minion runs on its own JVM (packaged with its own java in its install directory) and you don't need to even have java installed on your system. Minion does not have permission to even write to C:\Windows directory.
I assume you installed Minion in the default location which would be C:\Users\Олег\AppData\Local\Minion\ on your system
Currently Minion has problems with unicode characters in the install path on some windows systems and you have one in your user name.
So uninstall Minion and try installing it some where like C:\Minion where there isn't a unicode character.
Please let me know if this works for you. Thanks
*Also what language and version of windows are you using? We are trying to reproduce this issue and are having trouble. We know it happens though because a few others have reported it. They also reported changing the install location to a path with out unicode fixed it for them too.