Transmac Drive Has Been Locked By Another Program Jun 2026

A common scenario for this error occurs when users attempt to "Restore" a macOS DMG image to a USB drive.

If the drive contains partitions created by macOS that Windows recognizes as RAW or unallocated:

Type list disk and press . Identify your USB drive number by looking at the storage capacity (e.g., Disk 1 or Disk 2). Warning: Selecting the wrong disk will erase your data.

Remember to re-enable your antivirus protection immediately afterward. 5. Change the USB Port or Restart the PC Transmac Drive Has Been Locked By Another Program

the TransMac desktop icon or start menu shortcut. Select Run as administrator . Click Yes on the User Account Control (UAC) prompt. Try formatting or writing to the drive again. 2. Close Background Windows Processes

: The simplest step of all, but often overlooked. A full restart clears all temporary file locks and resets the state of your USB controllers.

Press Windows Key + R , type cmd , and press Ctrl+Shift+Enter to open an elevated command prompt. Type diskpart and press Enter. A common scenario for this error occurs when

Avoid using external unpowered USB hubs; plug the drive directly into the computer. Alternative Solutions

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Type select disk X (replace with your actual drive number) and press Enter . Type clean and press Enter . Warning: Selecting the wrong disk will erase your data

If all else fails, you may need to consider more drastic measures. These are last resorts.

often block TransMac from writing to the raw disk to prevent potential "threats". Active Background Tasks

Right-click the on your desktop or Start Menu. Select Run as administrator . Try formatting or writing to the drive again. Use a Different USB Port