Transmac Drive Has Been Locked By Another Program [2021] Jun 2026

The error generally stems from one of three sources: active file explorer instances, system background services, or third-party security software.

Security programs scanning the newly inserted drive for malware.

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Right-click the on your desktop or in the Start menu. Select Run as Administrator . Try the "Restore with Disk Image" process again. 2. Close File Explorer and Background Apps Transmac Drive Has Been Locked By Another Program

Avoid using "Fast Startup" if you frequently work with external drives.

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

Press the , type cmd , and press Ctrl + Shift + Enter to open an elevated Command Prompt. Type diskpart and press Enter. Type list disk and press Enter to see all connected drives. The error generally stems from one of three

Right-click the TransMac icon and select Run as Administrator . Without elevated permissions, TransMac often fails to override system locks.

Once formatted, try the option again. 🚫 Why is this happening?

Windows Explorer often automatically attempts to index or generate thumbnails for files on newly connected drives. If the drive contains a file system recognizable to Windows (such as FAT32 or exFAT partitions often found on bootable drives), Explorer keeps an open handle on the drive letter. This prevents TransMac from locking the physical drive. This link or copies made by others cannot be deleted

to TransMac for creating bootable macOS installers on Windows?

When Windows asks to "Format this drive before you can use it," always select Cancel .

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