An Error Occurred While Preparing the Installation Try Running This Application Again Lion

Updating your Mac to the latest version of the macOS software is usually like shooting fish in a barrel and straightforward. Yet, you may run into Mac update issues. A common installation error message that a lot of users are receiving is beneath:

"An mistake occurred while preparing the installation. Try running this application again."

You may encounter this bulletin when you desire to install or reinstall an update or upgrade. This article explains how yous can fix this trouble.

See also: The macOS Installation Couldn't Be Completed Error Fix

Here is how you tin can fix this problem:

Delight try the following troubleshooting tips in order. After trying each pace, test to see if you've fixed your issue.

1. Restart your Mac.

Simply restart your Mac to see if this fixes your problem.

2. Check the date and time.

Make sure that the date and time on your Mac are set correctly. Hither is how yous can cheque this:

• On your Mac, click System Preferences, then choose Date & Fourth dimension. If your settings are non right, update them. Yous may also want to check the "gear up date and time automatically" box to turn on the choice to fix date and time automatically.
• However, the option above may non piece of work for yous as you may not access Organisation Preferences if your Mac stuck in the centre of a macOS update. So you can use Final (Applications / Utilities) to update your date and time settings. Here is how:
  • Plow off your Mac, y'all can do and then by pressing and holding the power button.
  • Turn on your Mac and immediately press and agree the Command (⌘)-R keys together. Keep property these keys until you see the Apple logo or a spinning earth.
  • Your Mac will start upwardly from macOS Recovery. This may accept fourth dimension and then exist patient.
  • Enter your password, if asked.
  • You will come across the "macOS Utilities" window.
  • From the summit menu, click Utilities and Last. This will open the Terminal window.
  • In Termina, enter the following command and hit enter:
  • engagement
  • This will give yous your computers time and engagement setting. Is that correct? If non, update information technology:
  • If your Mac has an Internet connection, enter the following control and striking enter:
  • ntpdate -u time.apple tree.com
  • This will automatically update the setting. If you take no Internet connection, and then you will take to manually update this setting:
  • Enter the current appointment using this format: date mmddHHMMyy". (mm = two-digit month, dd = two-digit twenty-four hour period, HH = 24 60 minutes, MM = minute, yy = 2 digit year) So if it is currently xi:46am, April 03, 2020, the command would expect like: "date 0403114620". So enter something like this:
  • engagement 0403114620
  • Again allow'southward doublecheck, enter the date command once more to meet if your Mac has the correct setting.
  • Now go out Concluding and effort again.

3. Try installing in Condom Mode.

• Plow off your Mac.
• Plow on your Mac and immediately press and hold the Shift cardinal.
• Continue holding the Shift key until you run across the Apple logo.
• Log in, you may accept to log in a few times.
• Now your calculator is in Prophylactic Mode.
• Try updating your Mac now. Does it work?
• To get out Safe Mode, restart your Mac normally.

4. Use macOS Recovery.

• Turn off your Mac.
• Turn on your Mac and immediately press one of the keyboard combinations:
  • Command (⌘)-R: This reinstalls the latest macOS version that was installed on your Mac.
  • Option-⌘-R: This volition update your Mac to the latest compatible macOS version.
  • Shift-Option-⌘-R: This will install the macOS version that came with your Mac.
• Click Reinstall macOS then Proceed.

5. Utilise a philharmonic update.

• Please note that you tin use this method to update your Mac from a prior version of macOS within the aforementioned major release. For instance, the macOS 10.fifteen.4 philharmonic update requires that macOS 10.fifteen.0 or later is installed.
• Download the necessary macOS combo update from the Apple tree website.
• They are dmg files. Also, note that they are very large files.
• Double click the install the file. And then follow the onscreen instructions.

Dr. Serhat Kurt worked as a Senior Technology Director. He holds a doctoral degree (or doctorate) from the University of Illinois at Urbana / Champaign and a master's degree from Purdue University. Here is his LinkedIn contour.

jameslifets.blogspot.com

Source: https://macreports.com/an-error-occurred-while-preparing-the-installation-fix/