How do you reset the Nvram on a 2012 MacBook Air?

Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart.

Is resetting Nvram good?

In the instance that PRAM/NVRAM information has become corrupted, resetting the PRAM/NVRAM may be a necessary solution. Unless reset, your Mac may use the incorrect settings, behave abnormally, or not even start up! We recommend a wired keyboard since wireless keyboards don’t always work for NVRAM resets.

How do you Hard Reset a MacBook Air?

How to reset MacBook Pro or Air if you are selling Turn off your MacBook Then restart it by holding the Option+Command + R keys. Release the keys when you see the Apple logo, and until the macOS Utilities window appears. The next is to use Disk Utility to completely erase your startup disk. If there is an internal hard disk, wipe them too.

How do you reset RAM on a Mac?

The steps needed to reset the parameter RAM are the same, regardless of whether your Mac uses NVRAM or PRAM. Shut down your Mac. Turn your Mac back on. Immediately press and hold the following keys: command+option+P+R. Continue to hold down the four keys. Finally, when you hear the second startup chime, you can release the keys.

How do you restore factory settings on a Mac?

To restore the computer to factory settings, follow these steps: 1. Hold Command and R keys while your Mac is starting to start into OS X Recovery, and open Disk Utility. 2. Choose ” Macintosh HD” on the sidebar, go to the Erase tab and erase the drive. 3. Close Disk Utility and reinstall OS X.

How do you restart a MacBook Pro?

Turn on or restart your MacBook Pro. Hold down Command and R at the same time right after you restart your Mac. Keep holding down the keys until your Mac finishes loading and you see the macOS Utilities window. Click on Utilities in the Menu Bar on your MacBook Pro. It’s in the upper left of your screen.