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Fielkdog

macrumors newbie
Original poster
Mar 13, 2022
1
0
Hi there,

I am about to sell my 2017 iMac and have been trying to reset it to factory settings. Everything in the process has gone fine except for the very last part - trying to
install MacOS. I erased the Hardrive in Disk Utility as per YouTube instructions but when I got to the 'Install MacOS Sierra', it won't let me download it and just comes up with the error "The Installer information recovery server is damaged". How do I fix this and continue on?

These are the iMac specs:
iMac (retina 4k, 21.5" 2017)
processor: 3.4Ghz quad core intel core i5
memory: 8GB 2400 MHz DDR4
graphics: Radeon pro 560 4GB

Any help would be greatly appreciated. Thanks!
 

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