AL227
Level 1
(9 points)
Q: How do I stop El Capitan from automatically installing
El Capitan automatically installed overnight. I have a lot of incompatible software so I have maintained Yosemite. Auto update is not turned on. Also I am sick of having to say no to the upgrade. What can I do? It takes hours to revert.
iMac (27-inch Late 2009), Mac OS X (10.7.3)
pinkstones
Level 5
(4,209 points)
AL227 wrote:
El Capitan automatically installed overnight. I have a lot of incompatible software so I have maintained Yosemite. Auto update is not turned on. Also I am sick of having to say no to the upgrade. What can I do? It takes hours to revert.
El Capitan did not automatically install overnight. If you go up to --> About This Mac, it will not say that you're running El Capitan, because in order to install El Capitan, you have to input your administrator password — the computer won't automatically input it and submit it. So, unless someone got on your computer while you were sleeping and messed around with the App Store and installed El Capitan on your system, that's not what happened.
Check your Applications folder. Do you see the installer for El Capitan? If so, just delete it. The reason you keep seeing reminders or notifications to upgrade is because your system is becoming increasingly out-of-date. If you have a lot of incompatible software, you need to think about either looking for updates for them or uninstalling them and choosing something similar that IS updated, because the further the process goes, the more left behind you're going to be.
