In the TransMac window, right-click in an empty area of the left pane, then select from the context menu. Once the list refreshes, try accessing your drive again.
Complete Guide to Fixing: "TransMac drive has been locked by another program"
If TransMac is currently open, close it completely.
Some USB flash drives have controller firmware that reacts poorly to raw flashing tools on Windows. Testing with a different brand or model often resolves the issue.
The error is a protective measure by Windows. In 90% of cases, Solution 1 (Restarting Windows Explorer) will solve the problem instantly. If that fails, disabling your antivirus or cleaning the drive via Diskpart are your next best steps. transmac drive has been locked by another program hot
Navigate to > Virus & threat protection settings . Click Manage settings . Switch Real-time protection to Off .
Open TransMac again. It should now detect the drive without the lock error.
Look for background programs like . Right-click the program and select End Task .
If you’ve tried every step and the error persists, the drive’s partition table may be corrupted. In that case, use data recovery software first, then reformat using TransMac’s “Format Disk for Mac” function after booting into Safe Mode with no other drives connected. In the TransMac window, right-click in an empty
Are you trying to the drive, or are you writing a DMG file to it?
Type select disk X (replace X with your actual USB drive number). Type clean and press Enter to wipe the partition data. Type convert gpt if creating a modern macOS bootable drive.
Go to > Settings > Update & Security > Windows Security . Click Virus & threat protection > Manage settings .
How to Fix the "TransMac Drive Has Been Locked by Another Program" Error Some USB flash drives have controller firmware that
Right-click the unallocated space on your USB and create a new simple volume formatted as Open TransMac again and try to "Restore with Disk Image". Potential Hardware or Software Issues Trial Period Expired
If you find yourself running into this issue frequently, consider using a tool like or IObit Unlocker . These utilities can identify precisely which program is locking the USB drive, allowing you to unlock it without stopping the process.
Sometimes, a simple reboot can resolve the issue by terminating any background processes that might be interfering.