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how to make bootable mac usb from dmg file in windows

Creating a bootable macOS USB drive from a DMG file on a Windows PC can be done using a few different methods. Here’s a step-by-step guide using the common method of using TransMac, a popular software for handling macOS files on Windows.

Method 1: Using TransMac

Requirements:

  • A USB drive with at least 16GB capacity
  • The DMG file you want to create a bootable USB from
  • TransMac (a software that allows you to read Mac files on a Windows PC)

Steps:

  1. Download and Install TransMac:
    • Visit the TransMac website and download the software.
    • Install TransMac on your Windows PC. Note that the software offers a 15-day trial period.
  2. Prepare Your USB Drive:
    • Insert your USB drive into the Windows PC.
    • Open TransMac with administrative privileges (right-click the TransMac icon and select “Run as administrator”).
    • In TransMac, find your USB drive in the left-hand column.
  3. Format the USB Drive (Optional but recommended):
    • Right-click on the USB drive in TransMac.
    • Select “Format Disk for Mac” and confirm. This will erase all data on the USB drive, so make sure you have backed up any important files.
  4. Restore the DMG File to USB:
    • Right-click the USB drive in TransMac again.
    • Select “Restore with Disk Image.”
    • In the dialog box that appears, browse to the location of your DMG file and select it.
    • Confirm the restoration. This process may take some time depending on the size of the DMG file and the speed of your USB drive.
  5. Eject the USB Drive:
    • Once the restoration process is complete, right-click on the USB drive in TransMac and select “Eject.”
  6. Boot from the USB Drive on a Mac:
    • Insert the USB drive into the Mac.
    • Restart the Mac and hold down the Option (⌥) key during boot.
    • Select the USB drive from the list of bootable devices.

Method 2: Using UUByte DMG Editor

Another tool you can use is UUByte DMG Editor, which is also designed to create bootable macOS USB drives on a Windows PC.

Steps:

  1. Download and Install UUByte DMG Editor:
  2. Launch UUByte DMG Editor:
    • Open the software and insert your USB drive into the PC.
  3. Burn DMG to USB:
    • In UUByte DMG Editor, select the “Burn” option.
    • Browse for the DMG file and select your USB drive as the destination.
    • Click the “Burn” button to start the process. This will format the USB drive and burn the DMG file to it.
  4. Boot from the USB Drive on a Mac:
    • Insert the USB drive into the Mac.
    • Restart the Mac and hold down the Option (⌥) key during boot.
    • Select the USB drive from the list of bootable devices.

By following these steps, you should be able to create a bootable macOS USB drive from a DMG file using a Windows PC.

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