Latest version of macOS Monterey 12.7.6 not available on App Store

You can try deleting the Software Update .plist preference file followed by rebooting the system to see if that will allow the system to pull the correct information from Apple since macOS should create a new default file & update it. I did this once for one of my organization's Macs and it made the problem worse where it didn't pull any information when using the command line to list the full installers. The Software Update preference file is located:

/Library/Preferences/com.apple.SoftwareUpdate.plist

Have you tried to use those commands while booted into Safe Mode?

Do you have access to another Mac that is compatible with Monterey to attempt to download the 12.7.6 installer?

Another option would be to install macOS to a new APFS volume (assuming you have at least 80GB+ of Free storage space), or to an external USB3 SSD. Then boot from the new clean OS on that volume/drive to see if you can download the 12.7.6 installer using one of the methods already suggested.

Otherwise, like @John Galt said, you will probably need to have Apple examine the computer first hand. Some things are just too difficult to troubleshoot in a forum setting and requires being able to see everything first hand.

I recommend you start here: Come scaricare e installare macOS - Supporto Apple (IT), and scroll down to Monterey 12.

If that does not work, I have no explanation. You can try asking Apple by scrolling down to the Support link at the bottom of these pages.

Within that linked article is a link to another article that has links to various macOS installers. See if the Monterey link in that article will give you the 12.7.1 installer. Here is a direct link to the Apple article which has links to various versions of macOS:

How to download and install macOS - Apple Support

If that still does not give you the proper installer, then try using the Terminal with the following commands....the first will check to see which installers are available for your computer while the second is the command to download a specific version of macOS installer....you need to use one of the valid version numbers from the previous command:

softwareupdate  --list-full-installers

softwareupdate  -d  --fetch-full-installer  --full-installer-version  <version-number>

For macOS 12.7.1, the last command would be:

softwareupdate  -d  --fetch-full-installer  --full-installer-version  12.7.1

If none of this works, then try rebooting the computer. I know when Sequoia was first released none of my computers would show the most recent versions or even download them. It was a month later when my laptops finally were able to list all of the available versions & allow a download using the command line. Sometimes these Macs just get into a state where they won't properly see the update....or it could be an Apple issue (or both).

zacksit wrote:

Thanks, I already tried all those links and the terminal commands before and only the old version was available. The fetch-full-installer command for the 12.7.6 version resulted in no version found and there is only the old Monterey 12.7.4 version in the list-full-installers terminal command.

FWIW. the Terminal commands work for me.

Well, you could try changing the Region of your Mac to the United States and see if that makes any difference.

I understand what you want to do, but I have no way to know which Monterey version would appear for you in Italy. Since you determined it is outdated I can only surmise Apple has not made a subsequent, localized version. My attempts to download the version available to you resulted in "not available in the US App Store" or words to that effect, which was not surprising.

Contact Apple.

I may not have made myself clear: you have to contact Apple. We can't help you with that.