. This removes all partition info and usually breaks any existing software locks. Check TransMac Settings

Here’s a concise forum/social post you can use:

If you are trying to flash a macOS DMG file to a USB drive on Windows and hit the dreaded error, you aren't alone. This is one of the most common hurdles when using TransMac.

: Right-click the TransMac icon and select Run as Administrator .

to see all connected drives. Identify your USB drive by its size (e.g., Disk 1 or Disk 2). select disk X with your USB drive's number). Be extremely careful to select the correct disk and press Enter. This removes all partition info and locks. create partition primary and attempt to format or restore the disk again. Alternative Tools