Follow this guide to identify the background processes causing the lock and regain write privileges to your USB storage device. Why Windows Locks TransMac Drives
Windows Explorer is often the culprit. If you have a window open showing the contents of the USB drive, TransMac will be blocked. Close all File Explorer windows. transmac drive has been locked by another program hot
If the drive remains "locked" or has become corrupted, use the command-line utility diskpart to wipe it completely: Open Command Prompt as an administrator. Type diskpart and press Enter. Follow this guide to identify the background processes
This error usually means a Windows service or background process is actively accessing the USB drive, preventing TransMac from getting exclusive control. Quick Fixes transmac drive has been locked by another program hot