By Another Program Hot - Transmac Drive Has Been Locked

Several programs could be locking your drive. Close these applications before launching TransMac:

Because Windows cannot natively read Mac-formatted file systems, it often tries to scan, fix, or index the drive automatically, creating this software conflict. Quickest Workaround: Run as Administrator

In the Disk Management window, look for your USB drive (usually labeled "Removable" or "Disk 1", "Disk 2"). You can identify it by its size (e.g., 16GB or 32GB).

Whether the USB drive is recognized in standard Windows . transmac drive has been locked by another program hot

Ensure your USB or SD card doesn't have a physical write-protect switch toggled on. 5. Try a Dedicated Alternative

If TransMac continues to fail, you might use a tool designed to bypass these locking issues, like the UUByte DMG Editor or BalenaEtcher . When to Use Run as Admin Always do this first. Disable Defender If the error occurs immediately upon clicking "Format". Diskpart Clean If the drive appears "Read Only" or shows no space. New USB Port If the drive keeps disconnecting or failing halfway.

Type list disk and press . Note the disk number assigned to your USB flash drive (you can identify it by its storage size). Several programs could be locking your drive

Before opening TransMac, ensure the USB drive isn't already opened in a folder window.

: Real-time protection often locks external drives to scan them for threats the moment they are accessed. Temporarily disable Real-time protection in Windows Security settings while you perform the restore. Clean the Drive via Diskpart

If you are trying to create a bootable macOS USB drive on a Windows PC, you have likely turned to TransMac. It is one of the most popular utilities for opening Mac APFS or HFS+ formatted drives on Windows. However, users frequently encounter a frustrating error message when trying to write to or format a USB drive: You can identify it by its size (e

Press Windows Key + R , type cmd , and press Ctrl + Shift + Enter to open an elevated Command Prompt. Type diskpart and press .

If you’ve exhausted all solutions and TransMac still claims the drive is locked, try these alternatives (most offer free trials):

: TransMac requires administrative privileges to perform disk-level operations; without them, Windows may report the drive as locked or inaccessible. Step-by-Step Solutions 1. Run as Administrator Always right-click the TransMac shortcut and select Run as Administrator

Have you tried with the USB drive unplugged? Share public link