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

edirrr wrote:

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

I keep receiving this error.

What can I do, as my mac is on the list of supported products (MacBook Pro early 2015)

Best,

Igor

You do not say what macOS you are currently running...?

If you are not runnning Big Sur you may have to install this first to step up to Monterey

If your Mac qualifies for the update, try rebooting into SafeBoot mode to launch the installer.

If you have successful downloaded the installer it will be sitting in your Applications folder, You can launch from there like any other application "Install macOS Monterey.app"

If you have not downloaded the install—reboot into safe boot mode to start the download. Verify you use the Safari browser to initiate the download links see #3 https://support.apple.com/en-us/HT212735

This article may be helpful in sorting out your install. If it does not help, reach out to Apple Support as well.

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

Get Support – Apple

https://getsupport.apple.com/

Call Customer Support (800) MY–APPLE (800–692–7753)

or online https://getsupport.apple.com/

or call AppleCare Support at 1-800-APLCARE (800-275-2273)

Outside the USA—Contact Apple for support and service by phone

See a list of Apple phone numbers around the world.

https://support.apple.com/en-us/HT201232