fixed : burn .iso to bootable Windows DVD-R in OSX 10.11 El_Capitan

Question :

As I need to install Windows in Boot Camp mode on my Mac, I’m trying to burn an .iso disk image of Windows 7 onto a DVD-R from within OSX 10.11 El_Capitan.

But when I right-click on the .iso-file and select “Burn Disk Image “windows-7.iso” to Disc” from the popup-list,  everything seems to go okay, but I end up with a DVD-R with just the .iso-file on it…

It’s not a bootable DVD-R of Windows 7 as I was intending to do… what is wrong ?

 

Answer :

In OSX 10.11 El_Capitan the procedure for doing this has slightly altered compared to previous versions of OSX :

  • right-click on the .iso-file and select “Open With” and then “DiskImageMounter(default)” from the popup-list
  • now the .iso will mount in the Finder
  • then start the Disk Utility application
  • in the window that opens, select the mounted .iso from the list on the left ; it’s listed with an unpronounceable name under “Disk Images”
  • then, in the top menu bar of the screen, go to “Images” and choose “Convert…” from the pulldown list
  • in the pulldown window that opens, select the original .iso-file and click “Open”
  • in the next pulldown window, at “Save As:” replace the temporary Untitled-name with the unpronounceable name of the mounted .iso you’ve seen before
  • then, at “Where:” choose a destination to create the converted .iso-file, and make sure “Encryption:” is set to “none” and “Image Format:” is set to “DVD/CD master” ; then click “Save”
  • now, a .cdr-file will be created in the location you selected at “Where:”
  • right-click on the .cdr-file and select “Burn Disk Image “[name].cdr” to Disc”
  • in the window that opens, select your SuperDrive (or external DVD-burner) and click on the triangular arrow at the far right side
  • the window will be extended, and at “Burn Options” choose the slowest speed possible (if this option is greyed-out, leave it as-is), and at “After Burning” choose “Verify burned data”
  • then put a DVD-R in your Superdrive (or external DVD-burner) and click “Burn”
  • now, the end result will be a bootable Windows installer-DVD

enjoy !

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