macOS

Auto App Opening

• Turn off DVDs opening DVD app: System Preferences > CDs & DVDs

Keyboard

• System Preferences > Keyboard
  • Keyboard navigation: on
  • Text Input > Input Sources > Edit
    • Show inline predictive text: off
    • Add period with double-space: off
• Full keyboard access (accessibility setting): System Preferences > Accessibility > Keyboard > Full keyboard access

Disabling Delay Saving Screenshot

• Press Command + Shift + 5 to open the screenshot interface.
• Click the Options drop down.
• Uncheck the Show Floating Thumbnail option

Disabling Phone Calls on Computers

• Open FaceTime on Mac
• Go to Settings
• Uncheck Calls from iPhone

Disable Note Corner

• System Settings > Desktop & Dock > Mission Control > Hot Corners > turn off

Finder Sidebar

• Finder > Preferences > Sidebar

Screenshots

• Full screen: Cmd-Shift-3
• Draw a rectangle: Cmd-Shift-4
  • Go to clipboard: add Ctrl
  • Window: space, then click
  • Window with no shadow: space, then option-click
• Screen capture, draw a rectangle: Cmd-Shift-5

Flush DNS

$ sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder