Hi
Have a 2019 Retina 5k 27"
Currently running Ventura OS ( its been in storage for a while) . The download works fine, but I get an error message saying the installer isn't working correctly and I need a new one. However, I can't find one!
Any help gratefully received
iMac 27″, macOS 13.4
Typically, when an installer is not working correctly or is reported as corrupted, AND, you are trying to use it on a Mac that has been in storage, the issue may not be the installer, but the system time on the Mac.
As such, I suggest that you check that first, as follows:
If the date was correct to begin with, then it may be possible that the downloaded installer is corrupted. In that case, delete the existing installer, and then, use the following command in the Terminal to download the full installer: softwareupdate --fetch-full-installer --full-installer-version 13.7.6
Ref: How to Download macOS Sonoma, Ventura, Monterey, Big Sur, Catalina & Mojave Full Installers - Mr. Macintosh
Typically, when an installer is not working correctly or is reported as corrupted, AND, you are trying to use it on a Mac that has been in storage, the issue may not be the installer, but the system time on the Mac.
As such, I suggest that you check that first, as follows:
If the date was correct to begin with, then it may be possible that the downloaded installer is corrupted. In that case, delete the existing installer, and then, use the following command in the Terminal to download the full installer: softwareupdate --fetch-full-installer --full-installer-version 13.7.6
Ref: How to Download macOS Sonoma, Ventura, Monterey, Big Sur, Catalina & Mojave Full Installers - Mr. Macintosh
In addition to the good guidance give by our friend @Tesserax, delete any previously downloaded installer app that you find in your Applications folder. The installer application that you are trying to download will end up there with the name "Install macOS Ventura" (or something very close to that). The process may be failing if there already exists a Ventura installer.
Delete the existing install application and empty the Trash. Then try again with a fresh download.
Ventura installer not working correctly on iMac (2019
