Never try to access your drive in TransMac and Windows File Explorer at the same time, as this almost guarantees a lock conflict.
Antivirus software often locks USB drives during the "hot" write process, wrongly identifying it as a security threat. Open Windows Security or your third-party Antivirus. Go to . Disable Real-time protection temporarily. Run TransMac. Remember to turn it back on afterward. 4. Remove Drive from Disk Management Right-click the Start Menu and select Disk Management .
Type clean and press . This command obliterates all partition structures and breaks any software locks. Type exit to close Diskpart. transmac drive has been locked by another program hot
: Change the "Boot selection" dropdown to DD Image mode to allow it to write macOS DMG and ISO files. To help find the right fix, tell me: What version of macOS is the DMG file for? Have you tried another USB port or rebooting your PC ? Do you have third-party antivirus software running? Share public link
Once complete, open TransMac and select . 5. Check for Active Windows Handles Never try to access your drive in TransMac
If the drive partition table is corrupted or locked by a system service, you can use the Windows Diskpart utility to wipe the lock.
Your antivirus software or a corrupted TransMac installation can sometimes block disk access. Remember to turn it back on afterward
[Windows Security] ➔ [Virus & Threat Protection] ➔ [Real-Time Protection] ➔ [Toggle Off] 3. Kill background hooks via Resource Monitor