Transfer the bootable dmg file to Windows 11 desktop.Let’s proceed to the step-by-step instructions for creating a macOS Catalina USB disk on a Windows platform using TransMac. Although Transmac is not free, the developers provide a 15-day trial period, which is typically acceptable for one-time use. Among the various software options for managing macOS installer files (dmg) on a Windows system, Balena Etcher is the best choice. In cases where Internet recovery becomes unresponsive and fails to download the necessary macOS files, Windows can serve as a helpful alternative for creating a bootable macOS USB installer. Step 3: Make bootable macOS USB installer (ref: Catalina) on Windows 11 It cleans and converts the USB disk to GUID partition table if it is using MBR or something else. Search and open the command-line tool, and run the above given commands in the correct order. Converting the USB disk to have a GUID partition table (GTP) is recommended for this method work effectively.Ĭonnect a USB disk of more than 8GB free space to the Windows PC. So make sure that we keep the partition of the USB disk to have an appropriate scheme. ![]() Here we are creating a UBS installer for Mac on Windows. Step 2: Partition USB disk on Windows to make it bootable on Mac Once you perform a USB restore using the DMG mentioned above file on a Windows system, all of the boot files, including the macOS installer, will be seamlessly transferred, just as if the process was executed on a Mac.Ĭheck the following sections to learn about burning the DMG file onto a USB pen drive on Windows 11. You can proceed with the following steps once you download/transfer the DMG file to your Windows PC. Alternatively, you can visit our dedicated webpage on macOS offline installers or learn how to convert a macOS installer. This fee covers the data/hosting charges and compensates for my time and effort in handling your case. Contact me at, and for a nominal fee of $4, I will solve your concerns via email or Skype within 6-12 hours, depending on your time zone. I can assist if you’re wondering how to download the correct DMG file, the bootable version for any macOS version. Many websites that provide instructions on creating a bootable macOS USB installer on Windows never mention how to get the cited DMG file. Therefore, if we have access to the right and bootable DMG file, it is be feasible to make a macOS USB installer even within a Windows environment, provided we use a Windows tool capable of handling the DMG format. Fortunately, some Windows applications support a bootable macOS disk format called DMG. Certain file formats that are commonly used on Mac cannot be opened in Windows, and vice versa. This is due to the compatibility issues between these two operating systems. The options are pretty limited if you consider doing this task from a Windows computer. ![]() Step 1: Download bootable macOS for WindowsĪs previously stated, a Mac is needed when it comes to creating a bootable macOS USB disk. It’s important to note that I have tested this method on an Intel Mac, so I cannot guarantee its effectiveness on M series hardware. I am using macOS Catalina, but the process described below is compatible with all macOS versions, including Ventura. I used the following the steps to create a macOS High Sierra USB drive and successfully restored my iMac. Since my iMac was the only Mac I had access to, I had no other options until I stumbled upon a method that involved utilising a Windows PC to create a bootable USB installer for macOS. Despite the option for internet recovery being available, I faced repeated failures in downloading the necessary OS files from the servers. ![]() In my case, I faced a problem with the boot partition of my iMac and, unfortunately, did not have a Time Machine backup. However, if you don’t have a backup, you must perform a clean installation using a bootable USB/DVD drive or the Internet. ![]() Using a Time Machine is the most secure and convenient approach for restoring a faulty Mac in offline mode. How to make macOS USB installer on a Windows PC This article will explore various methods to create a bootable macOS USB for High Sierra 10.13, Catalina, Monetary 12.4, Ventura 13.4 and other macOS versions on Windows PCs and Macs. However, people only utilise this feature when encountering issues with their Mac, particularly when their system fails to boot up. Creating a macOS USB disk from the full installer downloaded from the App Store is straightforward, as Apple provides clear instructions for this purpose. Additionally, it serves as a useful tool for system recovery after a startup failure. A USB installer can significantly save time when installing macOS on multiple Macs without an internet connection.
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