Transmac Drive — Has Been Locked By Another Program __full__

Type list disk and press . Identify your drive number based on the storage size (e.g., Disk 1 or Disk 2).

Antivirus programs, Windows Defender, and live ransomware protection tools closely monitor active USB ports. When TransMac attempts a raw sector-by-sector write operation, security software may block it and lock the drive to prevent potential malware execution. Open (or your third-party antivirus app). Navigate to Virus & threat protection settings . Temporarily toggle Real-time protection to Off .

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

His phone buzzed. A text from his boss: Why are you pinging the old SCADA network? Transmac Drive Has Been Locked By Another Program

If you have the window open to see your partitions, close it. Disk Management constantly polls the hardware to update its UI, which can trigger the "Locked by another program" error in TransMac.

Before diving into complex system settings, try these quick troubleshooting steps:

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 Type list disk and press

After disabling Fast Startup, Windows performs a full, clean boot every time. External drives will no longer carry over "ghost locks."

This article provides a comprehensive guide to understanding why this happens and how to fix it, ranging from simple fixes to more advanced solutions. Why Does "Transmac Drive Has Been Locked" Occur?

Right-click the Disk number (e.g., "Disk 2") and select . Temporarily toggle Real-time protection to Off

Always remember to start with the simplest solutions—restarting your PC is your best first step. If the issue persists, use advanced tools like to reveal the hidden culprit. For persistent problems, consider adjusting Windows system settings like Fast Startup.

Before trying any solutions, follow these troubleshooting steps to identify and potentially resolve the issue:

Look for under the "Apps" or "Background processes" section. Right-click Windows Explorer and select Restart .

What is the specific macOS DMG version you are trying to flash?