The most important of these is to back up your Mac before you start the installation process so that you can recover from any installation issues that may arise. You should also take basic steps to ensure you can recover from any install issues you may come across. Even so, it’s a good idea to review our Rocket Yard guides for a clean install of macOS Catalina as well as an upgrade install of Catalina.
Installing a new version of the Mac OS is generally a fairly pain-free process this trend continues with macOS Catalina.
