To press Ctrl Alt Delete using an Apple keyboard, try the following combinations:
If you're using the Apple keyboard with Windows:
① Use Ctrl - Option - the Delete button to the left of the End button if you have a full-sized keyboard.
② If your keyboard has only one Delete key, it's really equivalent to the Backspace button on a Windows keyboard. To do Ctrl Alt Delete, you need to press Ctrl - Option - Fn - Delete or Backspace.
③ If you're using a USB keyboard with the numeric keypad on the right, you can also turn off the num lock and press Ctrl - Option - . from the numeric keypad.
④ Other combinations that have worked for some users are:
- Ctrl - Command - Fn - the right arrow
- Ctrl - Option - Fn - the right arrow
- Left Ctrl - right Option - Delete
Tips: If you're using the Apple keyboard with macOS, the equivalent of Ctrl - Alt - Delete on Mac for force quitting apps is Option -Command - Esc.