
Under the pop-up menu, you’ll see Select the OS X installer. In the main window, you’ll see a pop-up menu under Select the volume to become the installer. Make a bootable installer drive: The quick way How do I make a bootable Mac OS Catalina USB install?

How do I know if my Mac USB is bootable?.


Head over to the dosdude1 website and click on “Download Latest Version” to begin downloading the macOS Catalina Patcher on to your system. How to Download a Full MacOS Catalina Installer Without the App Store Apple recommends only system administrators follow these steps since a bootable installer isn’t necessary to update or even reinstall macOS. Using an external drive, you can install or reinstall the Mac operating system on a supported device. Subsequently, Can you install Mac OS from USB? Use an external drive or USB to install a fresh copy of macOS. Give the USB stick a name, then click Erase. …Ĭlick the Erase tab and make sure Mac OS Extended (Journaled) is selected in the format tab. Plug in the USB stick and launch Disk Utilities. When it’s finished, the installer will launch.

Download macOS High Sierra from the App Store.
