Forum Discussion
Enzozo
Jul 30, 2024Iron Contributor
Need help to burn dmg to usb for making Mac bootable USB drive
My wife's MacBook Air was stuck on system update after reboot and can't get into the desktop. Unfortunately, this is the only Apple device at our home. I need to make a bootable USB on my Windows 11 ...
Atlasec
Jul 30, 2024Copper Contributor
Enzozo You can use the built-in Command Prompt or Powershell utility to burn dmg to USB on Windows 10/11 along with the free 7-Zip app.
First, extract the content from macOS DMG file with the 7-Zip app. After that, insert your USB drive into the PC and format the drive with diskpart command:
select disk 1
clean
create partition primary
select partition 1
format fs=fat32 quick
active
assign letter=U
exit
Now, copy the extracted files to the USB drive:
xcopy C:\path\to\extracted\files\* U:\ /E /H /F
This process will burn the contents of the DMG file to the USB drive. Make sure to replace the placeholder paths and file names with the actual ones you are using.
TykeGuy
Feb 03, 2025Copper Contributor
Did all the diskpart commands up to Step 6 which fails - "The selected disk is not a fixed MBR disk.
The ACTIVE command can only be used on fixed MBR disks."