Windows restricts deep volume modification to unprivileged programs. Close all open folders and ( Win + E ) windows. Locate the TransMac shortcut on your desktop or Start Menu. Right-click the icon and choose Run as administrator . 2. Temporarily Turn Off Windows Real-Time Protection

The error message is a frustrating hurdle when trying to create a bootable macOS installer on Windows. This issue occurs because Windows treats the USB drive as a system resource and prevents TransMac from gaining exclusive write access.

fails to clean the drive, the USB stick may be physically damaged or "toast".

Open the Start menu, type cmd , right-click it, and . Type diskpart and press Enter.