đź’ˇ : If the drive is in GPT format, the clean command in Diskpart is often the only way to get TransMac to recognize it properly again. If you're still stuck, let me know: Your Windows version (10, 11, etc.) The brand/size of the USB drive
Once completed, close the Command Prompt, unplug the USB drive, plug it back in, and open TransMac. 5. Stop the Windows Search and Storage Service
: Highly recommended. It is open-source, modern, and automatically bypasses Windows filesystem locks to flash DMG files directly to USB. transmac drive has been locked by another program hot
Sometimes the simplest solution is to unplug your drive, wait a few seconds, and plug it back into a different USB port. This can reset any lingering processes that may have a hold on the drive.
If using a Mac, ensure the drive is formatted correctly using Disk Utility, ideally as GPT. Summary of Fixes What it does Run as Admin Grants necessary permissions. Simple permission errors. Diskpart Clean Clears partition table and locks. "Drive in use" / cannot access disk. Disable Antivirus Stops security software locking drive. "Access denied" during write. đź’ˇ : If the drive is in GPT
A modern, open-source image flasher that successfully writes macOS DMG images directly to USB drives. It automatically bypasses most Windows system locks.
Windows includes built-in tools to identify which process is locking your drive. Stop the Windows Search and Storage Service :
If you continue to have trouble, ensure you are using the latest version of TransMac from Acute Systems.
Title: TransMac says “Drive has been locked by another program” — how to fix?
Try the process in TransMac again. (Don't forget to restart the service later!) 5. Try a Different USB Port