High Sierra installation file corrupted?
Hello. I am trying to install OS X 10.13.6 from 10.12.6 on a Mac mini. I have located the link in App Store but when try and install I am getting a message saying "This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS." Any help with this would be greatly appreciated.
Mac mini, macOS 10.12