How do you reset the NVRAM on a 2011 IMAC?

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. On Mac computers that play a startup sound, you can release the keys after the second startup sound.

How do I reset the SMC on my IMAC 2011?

How to reset the SMC on Mac desktop computers

1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
2. Unplug the power cord.
3. Wait 15 seconds.
4. Plug the power cord back in.
5. Wait 5 seconds, then press the power button again to turn on your Mac.

How do I reset my NVRAM on my Mac?

Turn on your Mac and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after about 20 seconds. This clears user settings from memory and restores certain security features that might have been altered. Learn more about resetting NVRAM.

How do I reset the SMC and PRAM on my imac?

Press the power button to turn on your Mac. Immediately press and hold the Option, Command, P, and R keys on your keyboard. You need to press this key combination before the gray screen appears or it won’t work. Hold down these keys for 20 seconds, during which time your Mac will appear to restart.

How do I reset the PRAM and SMC on my imac?

Is it safe to reset NVRAM on Mac?

Contents. NVRAM stores peripheral data such as volume, display resolution and brightness, startup-disk selection, and time settings. Resetting the NVRAM is a quick, easy, way to troubleshoot a misbehaving Mac—it doesn’t delete any data from your storage drive, and it doesn’t require any tools or repair experience.

What happens when you reset NVRAM Mac?

Resetting the PRAM/NVRAM will delete your Mac’s current state information and restore the default settings for your Mac, including display resolution, sound volume, time zone, etc. Besides, it will also reset your internal hard drive as the startup disk.

What does SMC stand for Mac?

System Management Controller Reset
An SMC or System Management Controller Reset can fix various power related issues, such as a piece of hardware not functioning correctly.

What does SMC reset Do Mac?

Resetting the SMC restores the default settings related to low-level functions that you generally can’t modify in System Preferences. The SMC controls the power button response, battery management, sleep settings, thermal management, lighting settings and video source selection.

How do you restore iMac to factory settings?

Hold Command and R keys while your Mac is starting to start into OS X Recovery,and open Disk Utility.

Choose “Macintosh HD” on the sidebar,go to the Erase tab and erase the drive.

Close Disk Utility and reinstall OS X. OS X will be downloaded from Apple and installed.

How to reset an iMac to factory?

Log out of your accounts. Did you know that you can only play the content you’ve purchased on Apple TV or Music on 5 devices?

Disable iCloud.

Sign out of iMessage.

Unpair Bluetooth devices.

Erase Touch Bar data.

Reset NVRAM.

Back up your data.

How to reset pram iMac?

Shut down the computer.

Unplug the computer’s power cord from both the wall and computer.

Wait 15 seconds.

Attach the computers power cable.

Wait another 5 seconds and press the power button to turn on the computer.

How to reset SMC, pram, and NVRAM on Mac?

Power down your Mac

Press the power button and hold it for 10 seconds

Release the power button and restart your Mac

If that hasn’t resolved the issue,power down your Mac again

Unplug your power lead and wait 15 seconds

Reconnect your power lead and wait another five seconds

Turn on your Mac