Mac Startup Hotkeys

Apple

The following key combinations can be used during power up to access various repair/troubleshooting modes on a Mac. Unless otherwise stated all hotkeys should be pressed as soon as the startup chime sounds after pressing the power button and should be held until the apple shows on screen.

Single User Mode

Cmd(?)+S

Repair Mode

Cmd(?)+R

Reset PRAM/NVRAM

Cmd(?)+Option(?)+P+R

Diagnostics Mode

D

* hold until language selection displays
Internet Diagnostics Mode

Option(?)+D

* hold until language selection displays
Internet Recovery

Cmd(?)+Option(?)+R

Startup Manager

Option(?)