Hence, If we can download macOS DMG file, then it possible build the USB installer from Windows environment. Luckily some Windows applications support a bootable macOS disk format, DMG.
The cross-compatibility of extensions for the two OS are entirely different. If you think about doing it from Windows, the options are limited. Step 1: Download macOS Catalina for WindowsĪs said in the beginning, a Mac is must for creating bootable macOS USB disk.
As of now, the OS is Catalina 10.15.4, but the process given below is compatible with all editions of macOS including High Sierra. I did this for making a macOS High Sierra USB drive, and later I was successful in reinstating my iMac. As it is my only Mac, I had no option left, until I found the method to use a Windows PC to create a Mac OS bootable USB installer. Internet recovery was showing up, but it kept on failing to download the OS files from the servers. In my case, I lost the boot partition of my iMac and didn’t have a TimeMachine backup. If a backup is not there, you have to go for a clean installation either from a bootable USB/DVD drive or the Internet. TimeMachine is the safest option to recover a broken Mac in the offline mode. Make macOS Catalina USB installer on Windows PC
In this post, we explore the ways to make a bootable macOS USB for Catalina 10.15, High Sierra 10.13.6, and others from Windows PC and Mac. However, people use this feature only when they have a problem with their computer, mainly when their system is not booting up. It is easy to make a macOS USB disk from the full installer downloaded from the App store Apple provides clear-cut instructions for the same. Also, it helps in recovering a system after a startup failure. Alternative: Make a bootable Catalina USB installer on macOSĪ macOS USB installer saves much time when you want to install the OS offline on two or more Macs.Make macOS Catalina USB installer on Windows PC.
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