Open the Terminal mac application and enter any of the statements below into the command line. Note that some of these changes require a logout/restart to take effect.
sudo nvram SystemAudioVolume=" "
- This is only really useful when setting up a new Mac, or if you don’t use the Dock to launch apps.
defaults write com.apple.dock persistent-apps -array
defaults write com.apple.dock launchanim -bool false
defaults write com.apple.dock expose-animation-duration -float 0.1
defaults write com.apple.dashboard mcx-disabled -bool true
defaults write com.apple.dock dashboard-in-overlay -bool true
defaults write com.apple.dock mru-spaces -bool false
defaults write com.apple.TimeMachine DoNotOfferNewDisksForBackup -bool true
defaults write com.apple.print.PrintingPrefs "Quit When Finished" -bool true
defaults write com.apple.LaunchServices LSQuarantine -bool false
defaults write com.apple.SoftwareUpdate ScheduleFrequency -int 1
defaults write NSGlobalDomain AppleKeyboardUIMode -int 3
defaults write com.apple.BezelServices kDimTime -int 300
defaults write NSGlobalDomain NSAutomaticSpellingCorrectionEnabled -bool false