Blog Post: Fixing the "Drive Locked by Another Program" Error in TransMac
or third-party antivirus software, as these often scan the drive the moment it's plugged in, locking it for TransMac. Check for Mounted ISOs transmac drive has been locked by another program hot
Check your System Tray (bottom right corner). Close any disk utilities, antivirus scanners, or cloud storage apps (like OneDrive or Dropbox) that might be "watching" the drive for changes. 3. Use Diskpart to Clean the Drive (Most Effective) Blog Post: Fixing the "Drive Locked by Another
The Fix: Close TransMac completely. Right-click the TransMac icon on your desktop or in the Start menu and select "Run as administrator". 2. Disable Windows Defender (Temporary) 2. Disable Windows Defender (Temporary) occurs
occurs, it typically means a Windows process or security feature is preventing TransMac from gaining the exclusive low-level access it needs to write to a Mac-formatted drive. Because Windows does not natively recognize HFS+ or APFS file systems, it often tries to "protect" or "scan" the disk, causing a conflict. Common Causes for the Lock Windows Defender/Antivirus
Antivirus software (like Avast, Norton, or Windows Defender) often locks removable drives the moment they are plugged in to scan for malware. This lock can interfere with TransMac’s low-level writing process.