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After reformatting/partitioning the drive, I am now prevented from reinstalling macOS by some kind of security setting.
It seems to want administrator authorization, but since I deleted all admins when reformatting the drive, that is no longer possible and when starting with CMD+R, it does this
what in the world can I do?
[Re-Titled by Moderator]
Hi,
First of all, try to reset NVRAM as well as SMC, then if you have another Mac, you can create bootable macOS installer with it.
Reset NVRAM on your Mac - Apple Support
Reset the SMC of your Mac - Apple Support
How to download and install macOS - Apple Support
Cannot re-install High Sierra after reformatting partitions?
