User profile for user: Davidson2
Davidson2 Author
User level: Level 1
8 points

MacOS Sierra 12.6.03

Hi,

Whilst resetting Mac to factory settings, I excelled myself by deleting everything!


It appears that macOS is installed and I get the install window for MacOS Sierra 12.6.03, however, at the end of the install, I get "An error occurred while preparing the installation. Try running this application again." Which I have 5 times... I considered trying to download Sierra on my other MacBook to put on to USB and install, but I can't find the version to download.


Any advice on how to mend my stupidness would be appreciated.


Many Thanks

iMac Line (2012 and Later)

Posted on Jun 6, 2019 9:20 AM

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User profile for user: Eric Root
Eric Root
User level: Level 10
685,311 points

Jun 6, 2019 10:38 AM in response to Davidson2

macOS Sierra is 10.12, not 12.6.03. If you want to try downloading it on your other computer, try using the link below.


Sierra download


 You can make a bootable USB stick to install using these free programs which will do all the work for you.


Bootable USB Flash Drive – Diskmaker X      Disk Creator   or use Apple’s method       Create a bootable installer for OS

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MacOS Sierra 12.6.03

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