Directly connect the drive to the motherboard ports (rear USB) rather than a hub.
If it works in Safe Mode, a startup program or service is the culprit. Perform a clean boot to isolate it.
If TransMac continues to display lock errors due to deep system conflicts, alternative imaging utilities can bypass these limitations. Software Utility License Type Supported Formats Primary Use Case Open Source DMG, ISO, IMG
Move your flash drive from a front-case USB port directly to the motherboard ports on the back of your computer. Avoid using USB hubs. transmac drive has been locked by another program hot
If you need to check if the drive is already damaged before trying these steps, Share public link
Open Task Manager ( Ctrl + Shift + Esc ) and look for tasks like Acronis , EaseUS , Macrium , or cloud backup agents that automatically interact with external drives. End those tasks manually.
Windows tends to lock drives just by browsing them. Close: Directly connect the drive to the motherboard ports
With this information, we can isolate any specific OS environment or hardware issues affecting your setup. Share public link
Right-click the on your desktop or Start Menu. Select Run as administrator . Click Yes on the User Account Control (UAC) prompt. Try formatting or writing to your drive again. Step 2: Close Conflicting Background Programs
Type select disk X (replace X with your USB drive number—). Type clean and press Enter. Type exit . Now run TransMac. Pro Tip: Prevent the "Hot" Lock Issue If TransMac continues to display lock errors due
Open your Antivirus settings (e.g., Windows Security, McAfee, Avast). Look for or USB Scanning . Toggle the protection OFF temporarily. Complete your task in TransMac.
This comprehensive guide will walk you through exactly why this happens and, more importantly, how to fix it step by step.
The or macOS version of the DMG file you are attempting to flash.
If you are trying to burn a macOS DMG file to create a bootable installer, try balenaEtcher . It is a free, open-source alternative that handles drive locks differently and often succeeds where TransMac fails. To help troubleshoot this further, please share: The version of Windows you are currently running