I'm using a 2015 15" MBP with macOS 10.14. I downloaded the "Install macOS High Sierra" from the App Store to help show another forum member how it works. See thread: https://forums.macrumors.com/threads/mojave-causing-issues.2148814/#post-26692407 When i went to delete the Install macOS High Sierra.app it did not delete completely. The "InstallESD.dmg" in the installer package is not writeable by my user admin account. I moved the "Install macOS High Sierra" from the Trash to the Desktop open the contents and capture what I'm seeing to post in this thread: Please help me delete "Install macOS High Sierra".