Maple Doesn't Launch!

Hello!

So, heres the problem: When i launch MapleStory (by the site or Game launcher) and i click play, nothing happens! And when i see the processes, the process "MapleStory.exe" just disappears. When i click play the processe start, then it suddenly desapears and nothing happens: No erros, nothing shows up!

Here is what i've already tried:

-Executing with all compatibility modes, as admin (game launcher and MapleStory.exe)
-redownloading, reinstalling, rebooting
-Renaming the Patcher
-Instaling Maple in other places
-Using Steam
-Disabling antivirus and firewall (Panda antivirus)
-updating manually Black Cipher and Hackshield
-Some sites say to disable Microsoft Loopback Adapter but i dont have it.
-i have Windows 8.1, but i have already tried intalling Windows 7 and it still doesn't launched (on Windows 7 it shows "Error report")
-i have tried runing on diferent virtual machines too!
-sending a ticket to nexon

I really don't know what to do, does anyone knows how to fix this?

Thanks!