Automatically updating macintosh applications
Running old versions of software exposes you to security risks, slows your Mac performance and could cause your apps to fail when you need them most. Mac Update Desktop scans your Mac for outdated apps and immediately notifies you when a new version is available We’re tracking the latest versions so you don’t have to from a database of over 40,000 apps.
If you don’t want mac OS updates to download silently in the background, you can disable this feature with a few clicks in your App Store preferences.If you’re on mac OS El Capitan 10.11.5 or later, your computer can download major operating system updates such as mac OS Sierra in the background.In addition, most Mac models with a mac OS version older than El Capitan are capable of downloading app updates and security updates without intervention.Then, you can choose when to install it, or choose to be reminded the next day.And like before, you can easily check for updates manually at any time by clicking the Updates tab in the Mac App Store.The reason why I advocate this position is that major updates often introduce significant changes to how things look and operate.
Additionally, some of your applications or peripherals may not be fully compatible with the new operating system.
Uncheck all appropriate boxes next to "Automatically check for updates" and "Download newly available updates in the background".
Which is why your Mac, by default, installs them automatically.
This is a new default setting in OS X Mountain Lion.
You can disable it by going to the Apple menu to System Preferences and then selecting the Software Update pane.
If you want downloaded mac OS updates to install automatically without asking, select “Install mac OS updates.” To have the computer install any app updates from the Mac App Store automatically, just select “Install app updates” and you’re good to go.