Turn Off Software Update Mac Os X
Dec 10, 2014 Click on the Apple Menu → System Preferences. Next, click on App Store. There’s a button labeled “ Change ” next to “ Your computer is set to receive pre-release Software Update seeds.”. Select “ Do Not Show Pre-release Updates ”. Jul 20, 2019 Locate the folder named something like “MAU” or “MAU2.0” and open that directory. Locate and drag “Microsoft AutoUpdate.app” to the Trash. Empty the Trash as usual. Close the MAU folder and continue using your Mac as usual. With Microsoft AutoUpdate deleted, Microsoft AutoUpdate will no longer be on the Mac or run to update software automatically. Turn off automatic update download. To do this, dispatch System Preferences, tap on the App Store inclination sheet and check the “Introduce app updates” and “Introduce OS X refreshes” alternatives. Free Mac Cleaning Software: Keep it Clean. How to Uninstall Ruby on Mac.
Oct 16, 2019 Enter the following command at the Terminal command line: sudo softwareupdate -ignore 'macOS Catalina'. Hit return then enter the admin password. and hit return again to execute the command with super user privileges. Re-open System Preferences, the “MacOS Catalina” update will no longer show as available. Mar 25, 2019 If you’re a system administrator, you might want to prevent your Mac computers from downloading updates in the background, including downloads of major new macOS versions. This article is intended for system administrators. Jul 15, 2018 How can I turn off Microsoft auto updates on my MacBook Air? I uninstalled Microsoft from my MacBook Air, but I am still getting the notifications to update the software. Many thanks in advance for your assistance!

Disconnecting from the Internet wouldn't have helped in the least since the OS had already finished downloading and was installing Mavericks from the hard drive.
You had OS X, 10.7 Lion on the drive, not iOS anything. OS X is the operating system for Mac computers such as the Mac Pro, iMac, Mac Mini and MacBook Pro. iOS is a completely separate OS and is only for mobile devices such as the iPhone and iPad.
Mac Os X Software Update

Since Mavericks is now on the drive, the only way to go back to Lion, which your Mac came with, is to do an Internet Recovery. You WILL lose everything on the drive. Make sure to back up files you cannot afford to lose, first.
Turn Off Software Update Mac Os X 1
Restart and hold down the Command+Option+R keys. Launch Disk Utility and erase the drive. Then install OS X. The version of Lion that came with your Mac will download from Apple's servers and install.