- How To Create A Bootable Catalina Installer
- Bootable Usb Installer Catalina
- Create Bootable Catalina Installer
To install Catalina on another Mac, first make sure it's powered off, then simply plug in the USB installer you created and turn the Mac on. When you hear the boot tone, hold down the Option. If one is already running macOS Catalina, just open Terminal and use the following command to download the latest release of macOS: Or to download a specific version, even older, use e.g.: To create a USB installer, then in Terminal use the createinstallmedia command, e.g.: See How to create a bootable installer for macOS for details.
In our previous post, we shared an easy method to Create Bootable USB Installer for any macOS on Windows 10. We also shared a method on How to Create a Bootable Disk of MacOS X: 2 Easy Steps using a MAC system. Today, we will dive into a much deeper method on How To Create macOS Catalina Bootable USB on Windows!
Create macOS Catalina Bootable USB on Windows: Required Files
- macOS Catalina DMG file for a clean installation. (Download links have been provided below)
- A good internet connection to download the macOS Catalina DMG file. The file is around 8GBs, so you will need a good internet connection. Alternatively, you can use the Internet Download Manager tool that will help you enhance your downloading speed. I have provided the download links below.
- A USB Drive (Pen-Drive or External Disk). Your USB device must be of sufficient memory for the installation.
- TransMac tool from Acute Systems. This tool is a Windows application that may replicate and manage folders and files around Apple drives and apparatus, such as Mac-formatted hard drives, flash drives, and other memory devices, also, to open and burn disk images and .dmg along with .sparseimage documents.
How To Create macOS Catalina Bootable USB on Windows: Step by Step
This is a 4 step process, so please make sure you do not skip any part of it and eventually get frustrated with the failure. I have also shared a complete video tutorial on How To Create macOS Catalina Bootable USB on Windows: Step by Step, you can find the video at the end of this post.
Step 1: Download the required files to Create macOS Catalina Bootable USB on Windows
- TransMac tool from Acute Systems- This file is password protected and the password is www.techrechard.com. You can extract this file using WinRAR download free and support: WinRAR (win-rar.com).
- IDM 6.27 Build 2 Registered (32bit + 64bit Patch) [Techrechard.com] – This file is password protected and the password is www.techrechard.com. You can extract this file using WinRAR download free and support: WinRAR (win-rar.com).
Step 2: Install TransMac Tool on your Windows 10
After downloading the TransMac tool from the above links, you can simply proceed with the installation. You will see the following contents:
After the files have downloaded, click SETUP.
And click, Next.
Accept the terms and conditions.
Choose the directory for installation.
Leave the default ticks and click Next.
And you see that within no time the setup is complete.
Step 3: Open TransMac Tool
Once the installation is over, the transmac tool will open itself. And you will see the following message.
Since we are running the trial version of TransMac, you need to wait for 7 seconds and it will open up automatically. After the 7 seconds are over, you can simply click, Run.
Now insert your pendrive, usb drive or any external disk.
And click Tools, followed by Refresh drive list.
Once you click refresh drive list, you will see your USD device attached.
Step 4: Complete the installation
Now, right click your USB and click Restore with Disk Image.
Now, you will be prompted an error that you need to run TransMac using administrator access. So you simply click YES.
Now, wait again for 7 seconds.
How To Create A Bootable Catalina Installer
Now, right click on your USB device and click Restore from Disk Image again. You will be prompted with a warning and you can click Yes.
Now you select the Catalins DMG file and upload it.
Now click OK,
Now you will get your last warning that the USD device will be formatted. You can simply click YES.
The restoration process will begin and it will take around 20-30 minutes, depending upon your USD speed. For me, it took around 17 minutes.
Once complete, you will see.
Now the Restore process is complete, and you can use this USB as macOS Catalina Bootable USB. To check the contents of this USB, you will need a MAC system. If you do not have a spare MAC, no need to worry. I will show you the contents of this USB created.
NOTE: This USB will not work on Windows anymore. If you plug it again on your desktop, it will ask you to format the drive. So do not worry. The contents of this USB will be visible only on a MAC system.
As you can see the contents of the USB device. Now, you can use this as a macOS Catalina Bootable USB.
After this process is complete, you can use this USB to install macOS Catalina on your MAC system using the BIOS mode. You simply need to boot your MAC using this USB device at startup.
Here are some other posts that you might be interested in-
How to change the working of the function keys in Catalina?
How to Install macOS Catalina on VirtualBox on Windows: 8 Step Ultimate Guide
How to Install macOS Catalina on Unsupported Mac: 9 Easy Steps
How To Download Macos Catalina Vmware and Virtualbox Image – Latest Version
How To Download Macos 10.15 Catalina Iso + Dmg + Vmdk
How to Speed Up macOS Catalina? 7 Easy Methods
How To Create macOS Catalina Bootable USB on Windows: Conclusion
I hope you have enjoyed this article and have successfully created macOS Catalina Bootable USB on Windows. If you find any issues, you can leave your comments below. I have also created a complete video tutorial that you use and learn How To Create macOS Catalina Bootable USB on Windows below.
Apple has just released the latest update to macOS. The update, named macOS Catalina, brings a bucket-full of new features including the ability of using iPad as an external screen for Mac. It also officially kills the 20-year-old iTunes (on Mac) and brings separate apps to manage music and podcasts while also adding a new TV app.
Other notable changes include the abandonment of 32-bit apps in favour of 64-bit apps, refreshed Reminders, Photos, Mail, Safari, and Notes apps, and the introduction of Apple Arcade among others.
Whether you should upgrade your Macs to the new macOS Catalina is entirely up to your current workflow. The change that could affect it the most is the support for 32-bit apps being officially dropped. If you rely on old apps that needs an update for the new platform, you might want to hold your upgrade until these apps are updated or you find alternatives.
With macOS Catalina, Apple has changed the way you used to download the installer. Previously, you would download the new OS installer from AppStore itself and then use that installer to make a bootable installer for later use. In Catalina, when you click the Get button in AppStore, you are taken to the Software Update screen to download the new update.
This change makes is a bit tricky to create a bootable install media like a USB stick or memory card. Albeit not as straightforward as before, but it is definitely possible to make a bootable installer for macOS Catalina. This tutorial shows how to do that.
Update – 12th November, 2020: The latest update to macOS is out now. Learn how to make a bootable macOS Big Sur installer.
Make a Bootable macOS USB Stick or Memory Card
Before you begin:
- Make sure you have a USB stick aka pen drive aka flash drive or memory card aka SD card with at least 16GB of storage.
- Take complete backup of data on your Mac.
- Make sure you have a working, strong, and stable Wi-Fi connection to download macOS Catalina.
Step 1
Due to the way you get your copy of macOS Catalina has changed a bit, we will rely on a third-party app which will help us get the installer. The app we will use for this is called macOS Catalina Patcher which is primarily used to make a patched installer for old Macs that don’t support new versions of macOS.
Download macOS Catalina Patcher, place it under Applications, launch it, and click Continue. Click Download a Copy.
Now, before you move to the next screen, click Options in the menu bar and disable ‘Auto-apply Post Install Patches.’ After that, click Start Download and wait for the download — that is around 8GB — to finish.
Update: I just read other tutorials mentioning that you don’t need macOS Catalina Patcher. You can download macOS Catalina installer from the Software Update screen and it’s placed under Applications. If you wish to go ahead with that method, you can change the path in the Step 3 from Downloads to Applications.
Step 2
Once the download is finished, you can see ‘macOS Catalina Installer” under Downloads folder. Now it’s time to erase your USB stick or memory card.
Insert the medium you wish to use for creating a bootable installer in your Mac and open Disk Utility. Select the medium from the list on left and click Erase. Select Mac OS Extended (Journaled) under Format. Type Untitled in Name field (you can choose any name here).
Click Erase and wait for the process to finish. Remember that you are completely erasing the data on this media.
Step 3
Now you are ready to move to the final step which is to create the bootable macOS Catalina media.
Bootable Usb Installer Catalina
Open Terminal and type the following command. Make sure you don’t leave any spaces in-between.
sudo /Downloads/Install macOS Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled
Note: Replace Untitled (in bold above) with whichever name you gave in step 2.
If copying and pasting or typing this command doesn’t work, you can do the following.
Type sudo in Terminal and keep the window open. Now open Downloads folder and drag the macOS Catalina Installer file on the Terminal window. It will automatically generate the path where your Catalina installer is located.
Now, append --volume /Volumes/Untitled at the end of the automatically generated string and press Return key on keyboard. Note that there are two dashes (--) before volume and a space after volume.
Create Bootable Catalina Installer
Enter your password, press Y and press enter to start the process and let it finish — which will take about 15 minutes.
How to Install macOS Catalina from a Bootable Volume?
Once Terminal finishes the process, you can restart your Mac and when it is booting up, press and hold Option key until you see a black screen with an option to select the startup disk.
Select Install macOS Catalina and click continue. Let the installer load and once it’s finished, you should enter macOS Recovery screen which will ask you to select a user account which you know the password of. Choose your administrator account and enter its password.
Now click Disk Utility and continue. Select the volume where your current macOS is installed. The volume is usually named macOS. Click Erase. Leave the options as default and click Erase again.
After the process finishes, close Disk Utility and you will return to the recovery screen. This time, select Install macOS and continue.
Let the install process finish, which consists of a couple of automatic reboots. Once finished, you should see the initial macOS setup screen. After you are done with this on-boarding step, you will see the desktop and are all set to start using macOS Catalina on your Mac.
Making a Bootable macOS Installer Media: Summing Up
Bootable macOS installer is useful if you want to completely erase your Mac and reinstall the operating system, or if you have more than one Macs and you don’t want to spend time (and bandwidth) downloading the macOS update.
Making a bootable macOS Catalina installer isn’t too complicated. You can make a bootable flash drive aka pen drive aka USB stick or memory card and use it to install the latest macOS version on your Mac.
That’s it, folks. This was a quick tutorial on how to create a bootable macOS Catalina installer on a flash drive or memory card. I hope you found it useful.