Best Four Solutions when EFI Partition gets Damaged or Corrupted

by Techchef Data Recovery Techchef Data Recovery
EFI in Mac stands for Extensible Firmware interface that is responsible for loading initial system boot-time devices. EFI partition is mainly responsible for booting of the system, which, once compromised, can affect your Mac system adversely. Your files, documents and the system can get corrupted once the EFI partition is damaged. We will share four solutions to repair corrupted EFI partition and restore Mac files. 

How does a corrupted EFI partition affect the system?

Various factors, namely power failure, bad sectors, virus attack, software malfunction, hardware issues, etc., can be the root cause of EFI partition corruption in a Mac system. This corruption can affect your Mac system in the following ways. 

  • System fails to boot
  • Unable to load system software as normal 
  • Screen stuck with apple logo while starting system 
  • Inaccessible files, applications and other Mac data

1. System reinstallation via Recovery mode

If the primary partition isn't working, but the Mac recovery partition is normal, try to reinstall the system via recovery mode. Start with mac reboot>press "command+R" while booting>in "OS X utility" screen, connect Mac to internet>choose "reinstall OS X">choose target hard drive to reinstall system. 

2. Reinstall Mac via Internet recovery

For this step, you will need a strong internet connection to ensure the safe reinstallation of Mac without any interruption via internet recovery. Follow the instructions to restore the EFI partition. 

  • Reboot Mac 
  • Press the "Command + Option +R" key during the reboot
  • Once you see a spinning globe on the screen, you have entered the internet recovery mode. 
  • Check the progress bar to see if the recovery functions are downloaded. 
  • When finished, in the "OS X utility" screen, choose "Reinstall OS X".
  •  Input the destination, and Mac will start reinstallation. 

3. Disk utility

Disk Utility in Mac is a replacement of Chkdsk in Windows. Disk utility will scan and repair issues in the Mac hard drive to fix any logical problems. Broken or corrupted EFI partition in the Mac system after reinstallation can still come up with problems. Scan them with disk utility and repair the issues to ensure secure restoration of the hard drive partition. 

4. Resort to professional
Last but not least, what you can do for your broken EFI partition is to take it to a specialist for skill sets and customized tools. They are certified professionals that can recover your data from such data loss problems with dedicated tools and well-versed knowledge.


It's not a common instance that an EFI partition can be broken or damaged. Whenever it happens to your Mac, you must ensure that you keep updated backup data to prevent abrupt data loss. Also, keep diagnosing Mac with Disk utility regularly and update all the drivers to minimize EFI partition damage.

Mac Hard Drive Problems are Not so Complicated for Techchef Experts!

Bring it to us, and we will show you a wide range of customized Macbook data recovery solutions for any sophisticated data loss problem. Our professionals are well-versed with two decades of experience, understand the internal mechanism of every macbook model, and that's why we offer up to 100% recovery success rates. Never be left with a broken or damaged Macbook with Techchef, the best Macbook data recovery expert. 

Get in touch with us today for the best-in-class macbook data recovery service. 

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About Techchef Data Recovery Junior   Techchef Data Recovery

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Joined APSense since, February 17th, 2020, From Delhi, India.

Created on Oct 18th 2021 04:54. Viewed 78 times.


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