How can I have Finder find a file for real? ( search all files )

Solution 1:

  • For "Search:" choose "This Mac"
  • Click the "+" button
  • In the drop-down choose "System files" and "are included"
  • (optionally, also include hidden files with: "File visibility" and "Visible or Invisible")

If the the options for System files and File visibility are missing, you can check them by selecting "Other..." in the drop-down menu.

enter image description here