There comes a situation to the users when their systems refuse to start. This could happen for various reasons ranging from system files corruption, hardware failure and buggy updates. if this happens to your Apple computer, and in case of death old Compact disks, you would require Mac OS Catalina bootable USB.
This is the reason why many people create macOS catalane bootable USB the time when their system works properly. However, if you didn’t do this and you do not have MacBook, MacBook Air, MacBook Pro, iMac, Mac Pro or Mac Mini, you can use your Windows OS system to perform this task.
In this article, we will guide you how to create macOS Catalina bootable USB on Windows 10 (or 11). So, let’s begin and see how you should perform the task easily.
Method to Create macOS Catalina bootable USB on Windows PC
Pre-requisite materials:
- A high-quality USB Flash Drive with 16 GB of storage space,
- A copy of macOS (DMG file),
- Trial copy of ULTRADMG software,
- And obviously, the broken macOS system.
Procedure:
Very first, you have to download ULTRADMG software on your Windows PC. This is the software especially designed to create macOS bootable USB on Windows 10. It has very easier and simpler interface that anyone having basic knowledge of computers can easily create bootable USB installers. After downloading and installing the UltraDMG app on Windows PC, you have to perform the below steps to create macOS Catalina bootable USB installer:
Steps to create macOS Catalina bootable USB on Windows
- Attach the USB Flash drive to your PC,
- Run the UltraDMG software as Administrator,
- Format the Flash Drive using the software. In fact it does this automatically and so you should make sure that the DMG files aren’t on the USB,
- Now, burn the DMG file or extract it,
- Then, you have to create the USB installer. To initiate with, click on the first option on the software to proceed,
- Browse for the DMG file within the system, select it and tap on Burn,
- The app will burn the file to the USB and thereby provide a macOS Catalina USB installer for you.
Once the macOS Catalina is created by the software, you can disconnect your USB and use it to install and reinstall macOS Catalina on your MacBook, Macbook Pro, iMac and others. Subsequently adding, UltraDMG is not the only app that provides you an option to create macOS Catalina bootable on Windows.
There are many such apps available in the market. You can look for TransMac, DMG editor and even the most popular ‘Clover EFI’ software. You are free to choose any of the software as per choice. In case, your Flash Driver does not work with the software, this indicates partition problem.
In that very case, you can use the below Diskpart command –line utility on Windows to create an appropriate GPT partition.
Steps to create GPT partition on a removable drive:
- Open Start and search for Command Prompt,
- Right-click on it and search for Run as Administrator,
- Type the below commands and hit Enter on each time:
Diskpart
list disk
select disk (with the number assigned to the USB drive)
clean command
convert GPT
create partition primary
- Now, use the software to create a bootable media.
After this is done, which usually takes an hour and more, connect the USB flash drive and power on your Mac by holding the Option key and select the USB drive to begin installation process.
Conclusion
That’s it. This is how you can create a bootable USB installer for macOS Catalina on Windows PC or laptop using third party software. You can see that using third party software, the entire task of creating bootable USB installer becomes so easy.
