Where is the log file for VLC media player on W10?

You need to enable logging and set yourself the location and name of the log file:

  • Open menu Tools > Preferences
  • Set at the bottom "Show settings" to "All"
  • Click on the left Advanced > Logger
  • Check "Log to file" and set the log file in "Log filename"
  • Click Save
  • Restart VLC for it to have effect.