The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
I need a step-by-step of how to safely uninstall Catalina and go back to the previous OS, Mojave.
I lost a lot of apps, including Aperture, a much superior app than Photos.
I want to be able to use the apps I choose.
Thanks
Mac mini, macOS 10.15
You can download Mojave thru the app store, then create a bootable installer; reboot while holding CMD-R, Go click on Disk Utility, erase your disk, reboot into your Mojave installer, and install.
Or restore from your backup.
How to safely uninstall Catalina, reinstall Mojave
