Auto App Opening
- Turn off DVDs opening DVD app: System Preferences > CDs & DVDs
Keyboard
- System Settings > 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 Settings > 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 > 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