It comes with greater performance and a lot of features. What Issues Cause macOS Sierra Installation Stuck? Upgrading to the macOS Sierra can be very enjoyable. The part that’s not so elegant is when a stubborn CD or DVD gets stuck! Over the years, a ton of different methods for ejecting stuck discs have been passed around the Apple community. If one doesn't work for you, another definitely will.
You're in luck because there are a number of options for you to choose from. Now that you have a pretty good idea of the scenarios which could lead to macOS issues, the obvious step to take would be to know the solutions to them. The Solutions to MacBook That Gets Stuck on Apple Logo. I have gone onto my Macbook Air and I am able to load the app on there, so it seems that it's my iMac that doesn't like it.
I have checked that I have the latest OS update (macOS Catalina Version 10.15.4) and I have tried all of your suggestions - and it's still stuck on 'loading'.macOS updates stuck on Checking '(null)' Help I'm trying to update macOS from High Sierra 10.13.6 and as soon as I accept the terms of the update a box comes up that says Checking '(null)'.
