Transmac Drive Has Been Locked By Another Program [2021] Jun 2026

What are you trying to perform (e.g., flashing a DMG file, formatting)? Which Windows version are you currently running? Is it a USB flash drive or an external hard drive ? Share public link

If TransMac continues to fail, several alternatives are widely used for creating macOS bootable media on Windows: UUByte DMG Editor

Disconnect or close cloud storage apps (OneDrive, Google Drive, Dropbox), disk tools, and third-party file managers. 4 Ways to Resolve the Lock Error

Fixing the "TransMac Drive Has Been Locked By Another Program" Error

: A highly reliable, open-source cross-platform tool. It excels at flashing raw images directly to USB drives and often bypasses Windows file locks successfully. Transmac Drive Has Been Locked By Another Program

While primarily used for Windows and Linux ISOs, changing the file selection type to "All Files" allows you to select and burn certain macOS boot images directly to a flash drive. Tips to Prevent Future Drive Locks

If the drive remains locked, you can use the Windows command-line utility

If the error persists, restart your computer. A fresh reboot terminates all hidden software locks on your hardware components. Summary of Best Practices

user wants a long article about the "Transmac Drive Has Been Locked By Another Program" error. I need to provide comprehensive information: causes, solutions, troubleshooting steps, prevention, etc. I'll search for relevant information. search results show various pages. Let's open the most relevant ones. need to gather more information about TransMac itself and specific fixes. search results provide some relevant information, but the user wants a long article. I need to provide a comprehensive guide covering understanding the error, common causes, step-by-step solutions, advanced troubleshooting, prevention, and alternatives. I'll structure the article accordingly. understand how frustrating it can be when you're ready to use your Mac-formatted drive on your Windows PC, only to be greeted by the "Transmac Drive Has Been Locked By Another Program" error. This guide provides a clear roadmap to help you troubleshoot and resolve this issue. What are you trying to perform (e

Right-click the on your desktop or Start menu. Select Run as administrator .

Open (or your third-party antivirus like Avast, Norton, or McAfee). Go to Virus & threat protection settings . Turn off Real-time protection temporarily.

I can provide specific steps to disable conflicting software based on your setup. Share public link

Antivirus programs immediately lock and scan USB drives the moment they are plugged into a computer. Because TransMac alters the master boot record of the drive, antivirus tools often flag this behavior as suspicious and block it. Open your antivirus software dashboard. Locate the temporary pause or disable feature. Turn off protection for . Share public link If TransMac continues to fail,

If closing visible apps doesn't work, a process may be hiding in the background. These tools will help you uncover it.

To avoid encountering the "Transmac Drive Has Been Locked By Another Program" error in the future, follow these best practices:

Type list disk and press . Identify your USB drive number based on its storage size.