How to Create macOS Catalina Bootable USB Installer on Windows PC? [+Video]

Are you looking to create macOS Catalina bootable USB installer on Windows PC?

Do you intend to install macOS Mojave/ Catalina on your Mac computer?

Or do want to do a clean installation?

If so, this topic is definitely for you.

Creating a bootable USB installer on a mac computer is easy. You can use the build-in-mac-Terminal with few sample codes.

However, if you don’t know how to use Terminal or you don’t have access to a functional mac computer, then you need to do it on a different operating system like Microsoft Windows or Linux.

As far as Linux is a rarely used by people comparing to Microsoft Windows, i will show you how to create a bootable macOS USB installer on a Windows PC.

Note: If you want to watch the video tutorial it is linked at the end of this article.

Download macOS Catalina/Mojave dmg file.

To create macOS USB installer you need to have a dmg file of macOS Catalina/ Mojave.

For this purpose you can use App Store. if you do not have a functional mac you may download the dmg file from third party websites.

How You Can Create macOS Catalina Bootable USB Installer on Windows PC?

After you have downloaded dmg files , you can initiate making a bootable USB installer. On a Windows PC this can be done via a software called “TransMac

TransMac is available in both 10 days trail version and premium version. If you can effort i suggest you to use the full version.

Steps to Create macOS Catalina Bootable USB Installer on Windows PC?

Step #1: Download TransMac.
To download this software open your broswer and download it from the official website.

Step #2: Install TransMac.
Installation procedure of TransMac is as sample as installing other programs on Windows PC. Simply run TransMac.exe then follow on screen instructions.

Step #3: Plug your USB drive to your Windows PC.
You will need at least 8GB USB drive to make a bootable USB installer of macOS Catalina/ Mojave.

Step #4: Open TransMac if it is not already.
Now you will need to run TransMac to procced further if it is not open already. If you are using a trial version of the software you will need to wait a couple of seconds, then click “Run”.

Step #5: After TransMac is launched on your PC desktop, right click on your USB drive, then select “Restore with Disk Image” as you see below.

Step #6: Now select macOS Catalina/Mojave DMG file where you have downloaded and click “OK”.

After you selected the dmg file you will be notified that your USB drive will be formated. Press “Yes” to continue.

Well done, your bootable USB installer is going to be ready in about 15-20 minutes.

How to Install macOS Catalina/ Mojave?

After you created bootable macOS USB installer follow the following steps to install macOS Catalina or Moajve on your mac machine.

  1. Plug your bootable USB drive and restart your machine.
  2. Hold ALT+R keys during starting your mac computer. (Before Apple logo appears)
  3. Select your bootable USB on the screen and follow on screen instructions.


You can create bootable USB drive both on mac computer and  Windows PC. If you have a functional mac try Terminal and Unibeast.

To create bootable USB installer on Windows PC you can use TransMac for this purpose which comes both in trail and premium version.

I hope you find this article useful. If you find any question leave it in the comment box below.