Speaking of tweaking Mac, Terminal commands are the simplest way of completing preferences tweak. However, try to avoid system tweak (command lines involving sudo) as the effect will be catastrophic if it fails.
This time, the tweaking will be done on Finder interface which the interface will be downgraded to its lowest level, as in Finder for Sharing-Only Account. Fortunately, this simple Finder isn’t merely limited to Sharing-Only Account…
Shown Above. Simple Finder Interface
In Simple Finder mode, most features are dropped to only few remainings basic features, such as Close Finder, Hide Others and Run Full Finder.
To turn on Simple Finder, just execute this Terminal command line:
defaults write com.apple.finder InterfaceLevel simple killall Finder
To revert back to original setting, i.e. Full Finder Mode, this command line should be used:
defaults delete com.apple.finder InterfaceLevel killall Finder
This tweak can be used to secure your Mac, where you can shift to simple Finder mode before moving away from your Mac; Administrator password is required to Run Full Finder.
Shown Above. Run Full Finder