an error occured while preparing the installation, mac book

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Level 1

8 points

an error occured while preparing the installation, mac book

my plan was to erase everything of the computer to factory settings,, i deleted my utility disk data, and started to Reinstall macOS, which after 20mins it gives me this error, "an error occurred while preparing the installation. Please try again".

I now cant get in my macbook air 2017 at all. the safe start gets me an Internet start, then to macOS Utilities, my only option i can use is Reinstall macOS, which after 20mins will give me the same error, is there another way out?

IF this was windows, i could just simply download a windows copy from another computer and start up using that copy, can i do that on Mac?

MacBook Air 13", macOS 10.14

Posted on Jun 23, 2019 10:51 AM

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Answer 1

Top-ranking reply

HWTech

Level 9

61,406 points

Jun 23, 2019 9:12 PM in response to gwg_wp

Did you erase the physical drive or just the "Macintosh HD" volume? You need to erase the physical drive which is not shown by default in Disk Utility. You must click on the "View" drop down list and select "Show all devices".

Boot into Internet Recovery Mode using Command + Option + R so you can erase the physical drive.

Also connect the laptop directly to your router with an Ethernet cable to eliminate any WiFi issues.

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Answer 2

gwg_wp Author

Level 1

8 points

Jun 24, 2019 7:27 AM in response to HWTech

Bruh, i spent all night trying to follow stupid online tutorials. Thanks man.

FOR ALL OTHERS,

Turn off your mac

press power button on once

press Command + Option + R untill you see the apple logo

go to Disk Utility

look of and click erase,

name: (any)

Format: MacOS Extended

Scheme: GUID Partition

You can now install.

ur welcome

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an error occured while preparing the installation, mac book

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