You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Can you use the bootable installer after you’ve completely erased the Hard Drive?

Can you use a bootable installer after you’ve completely erased the Hard Drive?

iMac Pro

Posted on Dec 10, 2021 11:10 PM

Reply
Question marked as Top-ranking reply

Posted on Dec 11, 2021 1:59 AM

To perform this action will require booting from a Bootable Installer


This will have to be performed from a Qualifying Computer to run the version of macOS to be made on the Bootable Installer. Example : Bootable Installer of Monterey would have to be done on a computer that Qualifies to run Monterey.


Once that is done read on for preparing the Destination computer .


Only works on Intel Based Apple Computers.


Extra Special Notation regarding the Touch ID equipped Apple Computer.


About Startup Security Utility and Must Enable from Recovery Mode the ability to boot from External Drive Before Attempting 



1 - Shutdown computer and disconnect all external drive Except the newly created Bootable Installer.


2- Restart and immediately hold the OPTION key until the Startup Manager appears and choose the USB Drive. 


3 - It will present options >> Disk Utilities >> View >> View ALL attached Drives. 


4 - Choose the Upper Most Drive ( not the volumes indented and list below ).


5 - The drive normally is called Apple Media or Apple SSD - that is the drive to Erase and format as APFS with the GUID Partition Map.


6 - Once that is done >> backup out of Disk Utilities and choose install macOS. 


7 - Follow the prompts and it may automatically reboot several time. 


8 - Upon a final reboot - Setup Assist will present with the newer version of macOS.

2 replies
Question marked as Top-ranking reply

Dec 11, 2021 1:59 AM in response to Cbtreefree

To perform this action will require booting from a Bootable Installer


This will have to be performed from a Qualifying Computer to run the version of macOS to be made on the Bootable Installer. Example : Bootable Installer of Monterey would have to be done on a computer that Qualifies to run Monterey.


Once that is done read on for preparing the Destination computer .


Only works on Intel Based Apple Computers.


Extra Special Notation regarding the Touch ID equipped Apple Computer.


About Startup Security Utility and Must Enable from Recovery Mode the ability to boot from External Drive Before Attempting 



1 - Shutdown computer and disconnect all external drive Except the newly created Bootable Installer.


2- Restart and immediately hold the OPTION key until the Startup Manager appears and choose the USB Drive. 


3 - It will present options >> Disk Utilities >> View >> View ALL attached Drives. 


4 - Choose the Upper Most Drive ( not the volumes indented and list below ).


5 - The drive normally is called Apple Media or Apple SSD - that is the drive to Erase and format as APFS with the GUID Partition Map.


6 - Once that is done >> backup out of Disk Utilities and choose install macOS. 


7 - Follow the prompts and it may automatically reboot several time. 


8 - Upon a final reboot - Setup Assist will present with the newer version of macOS.

Can you use the bootable installer after you’ve completely erased the Hard Drive?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.