Transmac Drive Has Been Locked By Another Program [extra Quality] -

Temporarily disable Windows Defender or your 3rd party antivirus (McAfee, Avast, etc.).

If TransMac continues to fail, several alternatives are widely used for creating macOS bootable media on Windows: UUByte DMG Editor Transmac Drive Has Been Locked By Another Program

Now that we know the potential causes, let's work through the solutions in order, from the simplest to the most thorough. Temporarily disable Windows Defender or your 3rd party

Think about what you were doing before the error appeared. Did you have a photo open from the drive? A video file? A document? Any of those applications can hold a lock on the drive. etc.). If TransMac continues to fail

Type list disk to see all drives. Identify which number corresponds to your USB (e.g., Disk 2). Type select disk X (Replace with your USB’s number). Type clean .