How do I fix an an error occurred while preparing the installation try running this application again mac os sierra

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How do I fix an an error occurred while preparing the installation try running this application again mac os sierra

I really need help , I factory resented my MacBook because the user before me still had their things in here and I wanted to start over and when I factore reseted it and tried to install the macOS Sierra nothing happens it just says an error occurred and try again and I have school tomorrow and I’m not going to be able to join class on my computer I need help, I do everything people tell me to do with it I changed the date and time in terminal I erased the disk and nothing still is happening I watched slot of videos theirs worked but mines did not and I need help , nothing really worked I don’t know what to do now and it’s not on the regular Home Screen it’s on a screen where u have to install the macOS to get in your Mac so I really need help like do I need to take it to apple and have someone look at it or maybe have someone restart the whole computer so it can be fresh because I need help!!

MacBook Air 11″, macOS 11.2

Posted on Apr 25, 2021 5:09 AM

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BDAqua

Level 10

251,273 points

Apr 25, 2021 4:44 PM in response to quintia112

Did you erase the Drive then?

1. Start up from macOS Recovery

To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following combinations on your keyboard. Command-R is generally recommended, especially if you never installed macOS Sierra 10.12.4 or later… https://support.apple.com/en-us/HT204904#notupdated

Command (⌘)-R

Install the latest macOS that was installed on your Mac.

Option-⌘-R

Upgrade to the latest macOS compatible with your Mac.

Shift-Option-⌘-R

Install the macOS that came with your Mac, or the closest version still available.

2. Decide whether to erase (format) your disk

If you need to erase your disk before installing macOS, select Disk Utility from the Utilities window, then click Continue. You probably don't need to erase, unless you're selling or giving away your Mac or have an issue that requires you to erase. Learn more about when and how to erase.

3. Install macOS

After starting up from macOS Recovery, follow these steps to install macOS:

Choose Reinstall macOS (or Reinstall OS X) from the Utilities window.
Click Continue, then follow the onscreen instructions to choose your disk and begin installation.
If the installer asks to unlock your disk, enter the password you use to log in to your Mac. If it doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk.

Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

If your Mac restarts to a setup assistant, but you're selling or giving it away, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.

If you never installed macOS Sierra 10.12.4

If macOS Sierra 10.12.4 or later was never installed on your Mac, macOS Recovery works differently:

Command-R is still the recommended way to start up from macOS Recovery. This combination makes sure that the installation isn't associated with your Apple ID, which is important if you're selling or giving away your Mac.
Option-Command-R installs the macOS that came with your Mac, or the closest version still available.
Shift-Option-Command-R isn't available.

https://support.apple.com/en-us/HT204904

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How do I fix an an error occurred while preparing the installation try running this application again mac os sierra

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