Use it as a bootable troubleshooting tool with access to the same tools as the Recovery Volume.This bootable installer is suitable for that purpose. It's usually possible to roll back to a previous Mac OS version if you have the installer. You may have noticed that whenever a new version of macOS is introduced, there are always those who find fault with it and prefer to revert to an earlier version. If you ever need to roll back to an earlier macOS version, you can easily save a copy of the installer and keep it safe.It saves you the trouble of repeatedly downloading the installer to set up the operating system on as many Macs as you like.

The standard starting device can be completely erased by booting into the installer. To wit, you may reinstall Mac OS X from scratch without erasing anything from the hard drive that is currently set as the system's startup media.Having a bootable macOS Catalina installer is useful for a variety of reasons. Why Make a Bootable macOS Catalina Installer? Sidecar, to attach an iPad to a car's dashboard as a secondary screen.This new Find My app combines Find My iPhone and Locate My Friends.Apple Mail can now silence messages, block senders, and unsubscribe users.Music, Podcasts, and Apple TV apps that replace the iTunes app Enhancements to the Photographs app are All made possible by Project Catalyst.A brief rundown of some available software updates and new capabilities follows. A more pleasant experience for users and enhanced functionality. Some programs have been added, and others have greatly improved their features and user interfaces. When compared to prior macOS versions, Catalina introduces more substantial new features. Need help creating a bootable USB installer of macOS Catalina for your Mac device? Here, you'll find the information to start making a USB installation disk to run macOS Catalina. Thus, if you're worried about your Mac's health or want to start fresh with Catalina, create an installer bootable USB immediately. It means that you will only be allowed to install macOS Catalina for any new Macs you buy in the future. In addition, the signing certificates for older versions of macOS and OS X are set to expire soon, making now the ideal moment to make a bootable USB install USB based on Catalina. MacOS 10.15, often known as Catalina, is one of the most recent versions of Apple's desktop and laptop operating system.

Part 2: Create a bootable clone backup for macOS Catalina.

Part 1: Create a bootable USB installer for macOS Catalina.

In this article, we will show two contents:

Create mac os x bootable usb