Hidden & system files
Show dotfiles and system folders safely, and know when to keep them hidden.
Hidden files vs system files
Explorer can show hidden items and system locations, but they’re different switches.
Where to change it
Open Preferences → View:
- Show hidden files
- Show system files
Hidden files
Hidden items are mainly dotfiles - names that start with a dot:
.git.env.DS_Store
Turn this on if you do development, configuration work, or manage dotfolders regularly.
System files
System locations are the “don’t poke unless you mean it” parts of macOS, for example:
/System/Library/private/usr
Turn this on only when you’re troubleshooting or doing advanced maintenance.
Recommendation
- Keep system files off unless you have a clear reason.
- Use hidden files as needed (it’s much safer).
Next steps
- Preferences overview: Preferences
- File extensions: File extensions
- Permissions: Permissions