Issue is solved by installing and running opera 22, then I uninstalled opera 22 with personal data and Opera 24 keeps working

Opera 24 craches on startup
online/offline installers and Normal/Portable versions
Windows 8.1 x64 updated
Windows application event log is empty
Opera just launches several processes and crashreporter process and closes in ~4 seconds, browser don't show up

Which crash reports or log files you need?