help with install OS on erased HD
"An error occurred while preparing the installation. Try running this application again"
Tried making a bootable flash drive, then got error that the installation program was corrupt.
iMac Line (2012 and Later)
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Best reply
Hi, welcome to the Apple Users Community.
Are you sure your USB drive was formatted correctly?
Try this link for more help
https://support.apple.com/guide/mac-help/if-you-cant-install-macos-on-an-external-disk-mchlp2967/mac
Best of luck