Open QuickTime Player
Click File
Click New Screen Recording
Click the Record button
Choose to record the full screen or a selected portion
Click Record to start
Click the Stop button in the menu bar to finish
Save the recording when prompted
Open QuickTime Player
Click File
Click New Screen Recording
Click the Record button
Choose to record the full screen or a selected portion
Click Record to start
Click the Stop button in the menu bar to finish
Save the recording when prompted