

Shut down your iMac by holding down the power button until you see a slider with options to shut down, restart, or put it to sleep.Press the power button to turn the iMac off.Type in your username and password (if you have one set) when prompted to log in with administrator rights, then enjoy using your newly reset iMac!.You will hear another startup tone here, which means that booting is complete and your computer is now reset to factory settings! Let go of Command-Option-P-R for now, but keep holding down Option and R until your Mac restarts again.


Did your kid find his iMac and start browsing the Internet? Did your spouse catch you looking at cat videos on it again? Did a guest leave behind their browsing history and browser cookies? Or did someone just press all the wrong buttons on your desktop machine while trying to figure out how it works? If any of these situations sounds like something that happened with your iMac, we have good news - and bad news.
