Select the volume containing the bootable installer.

Release the Option key when you see a dark screen showing your bootable volumes.

Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac.

Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you’re installing.

Wait until the DMG file has been fully flashed to your USB drive.

Select the DMG you downloaded earlier from the Apple Downloads page.

You will then be asked which disk image to restore.

On the left-panel, select your USB flash drive and right-click the drive.

Load up TransMac and run the application as an administrator.

With your USB flash drive still connected to your Windows computer: How to Create a macOS Boot Drive In Windows Using TransMac Your USB flash drive is now ready to be used with TransMac. convert GPTįinally, you can create a new partition using the command create partition primary.

You can do this using the command convert GPT. Next, you need to convert the flash drive from MBR to GPT. Using the clean command, you can now delete all files on your USB flash drive. In the command below, X refers to your USB flash drive. This allows you to see which disk corresponds to your USB flash drive. list diskĪt this point, Diskpart will show all drives.

This allows you to locate your USB flash drive using the list disk command.

This command loads the command-line disk partitioning utility Diskpart. Once Command Prompt has loaded, enter this command: diskpart Be sure to select Run as Administrator when launching Command Prompt. This can be done by entering CMD or Command Prompt in the Windows search bar at the bottom right-hand side of Windows. To do this, you need to connect your USB flash drive to your computer and load Command Prompt. GPT is also known as the GUID Partition Table. The first thing you need to do is create a GPT partition on your USB flash drive. Creating a GPT Partition On Your USB Flash Drive Once you have downloaded TransMac and the macOS DMG file, you can prepare your USB flash drive. MacOS DMG files can be downloaded from the Apple Downloads page.

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