Cannot disable automatic Software Update
In the Software Update preferences (under System Preferences), when I click "Advanced", all options are checked, so automatic updates are turned on. I'd like to turn that off, but the checkboxes are greyed out; I am unable to uncheck anything. I suspect this was somehow locked by the ICT staff of my company when they delivered me my new iMac. However, I use this machine at home for my home office and I really prefer to disable this here and engage the updates manually. I have administrator privileges on this machine. Can someone help me out? Perhaps something through sudo on the command line?
Just for clarity: in the App Store there are similar preferences, and there I *can* uncheck them. However that does not have an effect on the Software Update preferences under System Preferences.
Best regards!
iMac Line (2012 and Later)