- Download Macos Catalina For Bootable Usb Free
- Download Macos Catalina For Bootable Usb Windows 7
- How To Create A Bootable Usb For Macos Catalina
- Download Macos Catalina For Bootable Usb Windows 10
After the MacOS Catalina 10.15 USB boot installer drive has been created, it will be mounted on the Mac. At this point it can be used like any other boot disk or installation disk. The MacOS Catalina boot disk can be used with any MacOS Catalina compatible Mac. Create a macOS Catalina bootable USB drive using this handy guide. The USB drive can be used to upgrade a Mac, clean install macOS or for recovery purposes. If you have more than one Mac you want to upgrade to macOS 10.15 Catalina but don't want to waste so much bandwidth downloading it for each machine, one option is to create a bootable installer on. So, now i'd like to download it and create a bootable/installable USB drive. No one yet has been able to put me on track as to how i can download my purchase. Any help would be appreciated. I downloaded Catalina, created an bootable USB, but when I do the start up disk option, my Mac HD nor USB is listed. Creating macOS Catalina Bootable Installer. If you are using a Windows PC, you can use this guide- How To Create macOS Catalina Bootable USB on Windows: 4 Easy Steps (+Video Tutorial) How to Install macOS Catalina from Bootable Installer. Insert the Bootable Installer to your MAC. Restart your Mac.
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.
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.
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.
MacOS Catalina, macOS Mojave, and macOS High Sierra download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Hint: before reading the guide (How to Install macOS Catalina On VirtualBox On Windows), it is suggested to browse into the necessary File part of the article and get macOS Catalina 10.15 then, and you will have time to browse the post before downloading has finished. When you are downloading macOS Catalina Virtual Machine image file and Google Drive touches its download limit, then right-click on the file and choose COPY to make a copy in the Google Drive of your own. From here download the macOS Catalina virtual image file. Moreover, we have provided an alternative link of media fire too. MacOS Catalina 10.15.4 introduces iCloud Drive folder sharing, Screen Time communications limits, Apple Music time-synced lyrics view, and more. The update also improves the stability, reliability.
macOS Catalina 10.15 is the latest operating system that runs on Apple Mac laptops and desktops. However, it is still in beta test and only available for part of Mac computers with high profile or enrolled in Apple Beta Program. Is there any way to upgrade the macOS to Catalina manually or install Catalina on Mac from scratch? The answer is Yes. But you have to download macOS Cataina DMG or the installer app.
If you are looking for the easiest way to download macOS Catalina DMG on a Macand but don't know how? Well, there are three ways by which you can instantly get the latest macOS installer without a hassle.
Part 1. Get MacOS Catalina DMG Via Direct Download Link
Many people prefer the direct download link of macOS Catalina as it is more flexible. You can unpack the DMG file and make a bootable Catalina installer USB, which can be used to install macOS on other computers. However, it is not easy to find the direct download link because Apple wants you to upgrade from Mac App Store. Fortunately, there are a few good websites that host the direct download link of macOS Catalina DMG. After that, you can burn the macOS dmg to USB to make it bootable for installation.
macOS Catalina 10.15 DMG Download Link 1: https://themacgo.com/macdownload/ (Wait a few seconds and the download starts automatically.)
macOS Catalina 10.15 DMG Download Link 2: https://drive.google.com/drive/folders/1ELQXMuuVWddamLPG0RHjyvaNW4r628CM (Password: Geekrar.com)
macOS Catalina 10.15 DMG Download Link 3: http://www.mediafire.com/file/wazr84baudhi27h/macOS_Catalina_DMG_by_Geekrar.rar/file
macOS Catalina 10.15 DMG Download Link 4: https://sundryfiles.com/G54 (Premium account required for download!)
macOS Catalina 10.15 InstallESDDmg PKG Download Link : http://swcdn.apple.com/content/downloads/61/56/041-83630-A_8RCIBB415Y/7jqh3nh97ood2mjej7hdgpx7fgh5c3fi9g/InstallESDDmg.pkg
macOS Catalina 10.15 VMware Image Download Link: https://www.mediafire.com/file/yrd1py7od5911zt/Catalina_Virtual_Disk_Image_by_Techsviewer.rar/file
macOS Catalina 10.15 VirtualBox Image Download Link: https://www.mediafire.com/file/yrd1py7od5911zt/Catalina_Virtual_Disk_Image_by_Techsviewer.rar/file
Tips: After downloading macOS Catalina .dmg file, it is time to make a macOS bootable USB from it. For this purpose, you can give a try on UUByte DMG Editor, one of the most popular software to create a Catalina USB installer on both Windows PC and Mac.
Part 2. Download macOS Catalina From Mac App Store
Apple always recommends its users downloading macOS install file from Mac App Store for security reasons. It is safe and easy. But the actual downloaded file is not an dmg file. Instead, it is an app called Install macOS Catalina, which is used to make the upgrade from current macOS to Catalina. For a clean install, it is better to download the dmg file and make an installer USB.
Note: Make sure to back up your Mac prior to installing macOS Catalina.
Step 1: Go to Mac App Store and search macOS Catalina. Then hit on 'Get' to download page.
Step 2: Doing this will open System Preferences followed by the section of Software Update, where you will find MacOS Catalina ready to download. Hit the option saying 'Upgrade Now' and download MacOS Catalina on your Mac.
Step 3: Next, macOS Catalina upgrade will ask for system reboot. Complete the process and install macOS Catalina on that computer.
Downloading macOS Catalina Install app works fine on my of newly devices but it could be problems for old Macs even it is officially supported by Catalina. If this is the case, then you have to patch the OS and install Catalina again. However, you need find a third-party app to do the dirty work. We will talk about this in Part 3.
Part 3. Download macOS Catalina 10.15 Installer with macOS Catalina Patcher
Although it may appear easy to try out the conventional approach of downloading macOS update in Software Update, there are a few known issues on old Macs shipped in 2013 or earlier, meaning the download progress can not be completed successfully. That's why macOS Catalina Patcher tool comes into help. This patching tool makes the job even simpler for installing macOS Catalina on unsupported Mac models.
However, the file size of these updates differs depending on the Mac device you are using. That means the downloaded update might not necessarily be the full installer version. For instance, if you wish to keep the installer file as archive for further application, or use it to generate bootable flash drive, this file size won't be sufficient.
Fortunately, with macOS Catalina Patcher tool, you can simply download the entire update of macOS setup from Apple's servers. Let's check out the stepwise instructions of how to use this software tool to download the macOS Catalina DMG.
Step 1: Download a copy of macOS Catalina Patcher from this link.
Step 2: After downloading and attempting to install, an error notification will be prompted. It is due to the unavailability of developer verification credential for macOS. Now, go to System Preferences -> Security & Privacy. Then find the button saying 'Open Anyway' to let the app run.
Step 3: Open macOS Catalina Patcher app and from the main menu, navigate to Options to uncheck the box saying 'Auto-apply Post Install Patches'. As you are done with the previous step and move to the screen as in the link below, hit Download a Copy.
Step 4: The following screen will notify the file size of macOS Catalina you are to download. The resolution is around 7GB and after the download, it will automatically get stored in the Downloads folder. Then hit Continue to initiate the process of download.
Step 5: The download time of the file will depend upon the internet connection and its speed. So, you might have to wait for some while for the process to complete. Eventually, the entire macOS Catalina setup file will be available on your device.
Closing Words
Well, that is all for the day. Hopefully, the above methods were helpful in guiding you on how to download macOS Catalina for both supported and unsupported Macs. When the download is finished, the next step is to burn the DMG file to USB. Then boot macOS from USB and starts the installation wizard.
It does not matter whether you use macOS or Windows 10. It's just a matter of time until your device will refuse to start, which could happen for many reasons, including (and not limited to) file corruption, hardware failure, and buggy update. If the unexpected happens with an Apple computer, you can use a macOS bootable USB with the installation media to repair it.
This is one of the main reasons you should consider making a macOS bootable USB when your device is working properly. However, if none of your devices (MacBook, MacBook Air, MacBook Pro, iMac, Mac Pro, or Mac Mini) aren't working when you need them the most, then you can use a PC to rescue your Apple device. You can use a Windows 10, Windows 8.1, or Windows 7 device to quickly create a USB bootable installation media to reinstall macOS Catalina or Big Sur on your Mac.
In this guide, you'll learn the steps to create a macOS Catalina bootable USB installation on Windows 10, which you can use to reinstall or upgrade the Apple OS.
Requirements
Before proceeding, you'll need the following:
- Broken Mac computer running macOS (version 10.12, 11, or later).
- A trial copy of the TransMac software.
- One high-quality USB flash drive with 16GB of storage.
- Copy of macOS (DMG file).
Create macOS bootable USB installation media
To create a bootable USB drive with macOS, use these steps:
Download and install TransMac on the Windows 10 device.
Quick note: This is a paid software, but it gives you a 15-day trial, which is more than enough time. (If this works for you and you want to support the developer, you can purchase the full version.)Connect the USB flash drive. (If you have any data on the flash drive, remember to make a backup, as everything on it will be erased.)
Right-click the TransMac app and select the Run as administrator option.
Click the Run button. (If you're using the trial version, wait 15 seconds.)
Right-click the USB flash drive, select the Format Disk for Mac option from the left navigation pane.
Quick note: You want to do this before creating the bootable media because there is a good chance that the drive was formatted using a Windows device. If this is the case, the chances are that it's using an MBR partition, and the USB drive needs a GPT partition to work on a Mac.Click the Yes button to format the drive on the warning message.
Confirm a name for the drive. For example, 'macOS bootable USB.'
Click the OK button.
Click the Yes button.
Click the OK button.
Right-click the USB flash drive and select the Restore with Disk Image option from the left navigation pane.
Click the Yes button to confirm the erase of the USB flash drive data.
Click the browse button on the right.
Select the .dmg file with the macOS installation files.
Click the Open button.
Click the OK button.
Click the Yes button.
Once you complete the steps, you can now insert the USB flash drive on your Mac computer to install, reinstall, or upgrade the operating system to the latest macOS version, which can be Sierra, Catalina, Big Sur, or higher.
Create a GPT partition on USB flash drive
If the USB flash drive is not working with TransMac, it could still be a partition problem. In this case, you may need to redo the entire process again. However, this time you should use the following steps to use the Diskpart command-line utility on Windows 10 to create the appropriate GPT partition, and then follow the above instructions.
How To Create A Bootable Usb For Macos Catalina
To create a GPT partition on a removable drive, use these steps:
How To Create A Usb Installer For Macos Catalina
Open Start.
Search for Command Prompt, right-click the top result, and select the Run as an administrator option.
Type the
diskpart
command and press Enter.Enter the
list disk
command to view all drives connected to your computer and press Enter.Type the
select disk
command followed the number assigned for the USB flash drive (for example,select disk 4
), and press Enter.Enter the
clean
command and press Enter.Type the
convert GPT
command and press Enter.Enter the
create partition primary
command and press Enter to complete the process.
How To Create A Catalina Install Usb
Once you formatted the USB flash drive with a GPT partition, you can use the instructions mentioned above to use TransMac to create a bootable media, but this time skip steps No. 5 through 10 and continue on step 11.
Download Macos Catalina For Bootable Usb Free
Create Macos Catalina Install Usb On Windows 10
After the process completes, which can take up to an hour, connect the USB flash drive and power on your Mac holding down the Option key, select the USB drive to begin installing macOS.
How To Make A Bootable Usb For Macos Catalina
Download Macos Catalina For Bootable Usb Windows 7
Part 1. Get MacOS Catalina DMG Via Direct Download Link
Many people prefer the direct download link of macOS Catalina as it is more flexible. You can unpack the DMG file and make a bootable Catalina installer USB, which can be used to install macOS on other computers. However, it is not easy to find the direct download link because Apple wants you to upgrade from Mac App Store. Fortunately, there are a few good websites that host the direct download link of macOS Catalina DMG. After that, you can burn the macOS dmg to USB to make it bootable for installation.
macOS Catalina 10.15 DMG Download Link 1: https://themacgo.com/macdownload/ (Wait a few seconds and the download starts automatically.)
macOS Catalina 10.15 DMG Download Link 2: https://drive.google.com/drive/folders/1ELQXMuuVWddamLPG0RHjyvaNW4r628CM (Password: Geekrar.com)
macOS Catalina 10.15 DMG Download Link 3: http://www.mediafire.com/file/wazr84baudhi27h/macOS_Catalina_DMG_by_Geekrar.rar/file
macOS Catalina 10.15 DMG Download Link 4: https://sundryfiles.com/G54 (Premium account required for download!)
macOS Catalina 10.15 InstallESDDmg PKG Download Link : http://swcdn.apple.com/content/downloads/61/56/041-83630-A_8RCIBB415Y/7jqh3nh97ood2mjej7hdgpx7fgh5c3fi9g/InstallESDDmg.pkg
macOS Catalina 10.15 VMware Image Download Link: https://www.mediafire.com/file/yrd1py7od5911zt/Catalina_Virtual_Disk_Image_by_Techsviewer.rar/file
macOS Catalina 10.15 VirtualBox Image Download Link: https://www.mediafire.com/file/yrd1py7od5911zt/Catalina_Virtual_Disk_Image_by_Techsviewer.rar/file
Tips: After downloading macOS Catalina .dmg file, it is time to make a macOS bootable USB from it. For this purpose, you can give a try on UUByte DMG Editor, one of the most popular software to create a Catalina USB installer on both Windows PC and Mac.
Part 2. Download macOS Catalina From Mac App Store
Apple always recommends its users downloading macOS install file from Mac App Store for security reasons. It is safe and easy. But the actual downloaded file is not an dmg file. Instead, it is an app called Install macOS Catalina, which is used to make the upgrade from current macOS to Catalina. For a clean install, it is better to download the dmg file and make an installer USB.
Note: Make sure to back up your Mac prior to installing macOS Catalina.
Step 1: Go to Mac App Store and search macOS Catalina. Then hit on 'Get' to download page.
Step 2: Doing this will open System Preferences followed by the section of Software Update, where you will find MacOS Catalina ready to download. Hit the option saying 'Upgrade Now' and download MacOS Catalina on your Mac.
Step 3: Next, macOS Catalina upgrade will ask for system reboot. Complete the process and install macOS Catalina on that computer.
Downloading macOS Catalina Install app works fine on my of newly devices but it could be problems for old Macs even it is officially supported by Catalina. If this is the case, then you have to patch the OS and install Catalina again. However, you need find a third-party app to do the dirty work. We will talk about this in Part 3.
Part 3. Download macOS Catalina 10.15 Installer with macOS Catalina Patcher
Although it may appear easy to try out the conventional approach of downloading macOS update in Software Update, there are a few known issues on old Macs shipped in 2013 or earlier, meaning the download progress can not be completed successfully. That's why macOS Catalina Patcher tool comes into help. This patching tool makes the job even simpler for installing macOS Catalina on unsupported Mac models.
However, the file size of these updates differs depending on the Mac device you are using. That means the downloaded update might not necessarily be the full installer version. For instance, if you wish to keep the installer file as archive for further application, or use it to generate bootable flash drive, this file size won't be sufficient.
Fortunately, with macOS Catalina Patcher tool, you can simply download the entire update of macOS setup from Apple's servers. Let's check out the stepwise instructions of how to use this software tool to download the macOS Catalina DMG.
Step 1: Download a copy of macOS Catalina Patcher from this link.
Step 2: After downloading and attempting to install, an error notification will be prompted. It is due to the unavailability of developer verification credential for macOS. Now, go to System Preferences -> Security & Privacy. Then find the button saying 'Open Anyway' to let the app run.
Step 3: Open macOS Catalina Patcher app and from the main menu, navigate to Options to uncheck the box saying 'Auto-apply Post Install Patches'. As you are done with the previous step and move to the screen as in the link below, hit Download a Copy.
Step 4: The following screen will notify the file size of macOS Catalina you are to download. The resolution is around 7GB and after the download, it will automatically get stored in the Downloads folder. Then hit Continue to initiate the process of download.
Step 5: The download time of the file will depend upon the internet connection and its speed. So, you might have to wait for some while for the process to complete. Eventually, the entire macOS Catalina setup file will be available on your device.
Closing Words
Well, that is all for the day. Hopefully, the above methods were helpful in guiding you on how to download macOS Catalina for both supported and unsupported Macs. When the download is finished, the next step is to burn the DMG file to USB. Then boot macOS from USB and starts the installation wizard.
It does not matter whether you use macOS or Windows 10. It's just a matter of time until your device will refuse to start, which could happen for many reasons, including (and not limited to) file corruption, hardware failure, and buggy update. If the unexpected happens with an Apple computer, you can use a macOS bootable USB with the installation media to repair it.
This is one of the main reasons you should consider making a macOS bootable USB when your device is working properly. However, if none of your devices (MacBook, MacBook Air, MacBook Pro, iMac, Mac Pro, or Mac Mini) aren't working when you need them the most, then you can use a PC to rescue your Apple device. You can use a Windows 10, Windows 8.1, or Windows 7 device to quickly create a USB bootable installation media to reinstall macOS Catalina or Big Sur on your Mac.
In this guide, you'll learn the steps to create a macOS Catalina bootable USB installation on Windows 10, which you can use to reinstall or upgrade the Apple OS.
Requirements
Before proceeding, you'll need the following:
- Broken Mac computer running macOS (version 10.12, 11, or later).
- A trial copy of the TransMac software.
- One high-quality USB flash drive with 16GB of storage.
- Copy of macOS (DMG file).
Create macOS bootable USB installation media
To create a bootable USB drive with macOS, use these steps:
Download and install TransMac on the Windows 10 device.
Quick note: This is a paid software, but it gives you a 15-day trial, which is more than enough time. (If this works for you and you want to support the developer, you can purchase the full version.)Connect the USB flash drive. (If you have any data on the flash drive, remember to make a backup, as everything on it will be erased.)
Right-click the TransMac app and select the Run as administrator option.
Click the Run button. (If you're using the trial version, wait 15 seconds.)
Right-click the USB flash drive, select the Format Disk for Mac option from the left navigation pane.
Quick note: You want to do this before creating the bootable media because there is a good chance that the drive was formatted using a Windows device. If this is the case, the chances are that it's using an MBR partition, and the USB drive needs a GPT partition to work on a Mac.Click the Yes button to format the drive on the warning message.
Confirm a name for the drive. For example, 'macOS bootable USB.'
Click the OK button.
Click the Yes button.
Click the OK button.
Right-click the USB flash drive and select the Restore with Disk Image option from the left navigation pane.
Click the Yes button to confirm the erase of the USB flash drive data.
Click the browse button on the right.
Select the .dmg file with the macOS installation files.
Click the Open button.
Click the OK button.
Click the Yes button.
Once you complete the steps, you can now insert the USB flash drive on your Mac computer to install, reinstall, or upgrade the operating system to the latest macOS version, which can be Sierra, Catalina, Big Sur, or higher.
Create a GPT partition on USB flash drive
If the USB flash drive is not working with TransMac, it could still be a partition problem. In this case, you may need to redo the entire process again. However, this time you should use the following steps to use the Diskpart command-line utility on Windows 10 to create the appropriate GPT partition, and then follow the above instructions.
How To Create A Bootable Usb For Macos Catalina
To create a GPT partition on a removable drive, use these steps:
How To Create A Usb Installer For Macos Catalina
Open Start.
Search for Command Prompt, right-click the top result, and select the Run as an administrator option.
Type the
diskpart
command and press Enter.Enter the
list disk
command to view all drives connected to your computer and press Enter.Type the
select disk
command followed the number assigned for the USB flash drive (for example,select disk 4
), and press Enter.Enter the
clean
command and press Enter.Type the
convert GPT
command and press Enter.Enter the
create partition primary
command and press Enter to complete the process.
How To Create A Catalina Install Usb
Once you formatted the USB flash drive with a GPT partition, you can use the instructions mentioned above to use TransMac to create a bootable media, but this time skip steps No. 5 through 10 and continue on step 11.
Download Macos Catalina For Bootable Usb Free
Create Macos Catalina Install Usb On Windows 10
After the process completes, which can take up to an hour, connect the USB flash drive and power on your Mac holding down the Option key, select the USB drive to begin installing macOS.
How To Make A Bootable Usb For Macos Catalina
Download Macos Catalina For Bootable Usb Windows 7
How To Create A Bootable Usb For Macos Catalina
If you have problems creating the bootable media, you can get a USB flash drive that comes with macOS Sierra, El Capitan, Catalina, etc., on it with the link mentioned below. (I haven't tried it personally, but it's worth the try if nothing works.)