Windows Defender (or any antivirus) may scan the drive as soon as TransMac tries to write, causing a lock conflict.
Security software often locks the drive as soon as it's plugged in to prevent unauthorized formatting. Open > Virus & threat protection . Select Manage settings . Toggle Real-time protection to Off temporarily. 2. Clean the Drive with Diskpart transmac drive has been locked by another program
Use a port directly on the motherboard (back of the PC) rather than a front-panel port or a USB hub, which can sometimes drop the connection. Check the Physical Switch: Some older USB drives and SD card adapters have a physical Write Protect switch. Ensure it is in the "Unlock" position. Windows Defender (or any antivirus) may scan the
This message halts all write operations, preventing you from copying files, creating bootable macOS USB drives, or modifying disk contents. What does it mean? Is your drive permanently locked? And most importantly—how do you fix it? Select Manage settings
Type list disk to find your USB drive's number (e.g., Disk 1).
To remount the drive later: In DiskPart, select the volume again and type assign .