Create bootable Windows 7 USB with Mac using Disk Utility

I've done this before but can't remember how.  I've tried different variations using the "restore" function within Disk Utility but I keep receiving the error could not validate source error - 254.

The image I'm attempting to use is .iso.  Again, I have completed this before with this system but I don't remember what I had to do in order to make it happen.  Thanks in advance.

My OS 10.7.5
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

1namylnAuthor Commented:
I've seen that.  Problem is its all command line and I know I've completed this task without having to use Terminal.
Ricardo MartínezInformation SecurityCommented:
Sorry but i can't find more references for that specific software and i don't have a mac to try. Hope you can find the solution or else, try doing it with the terminal like specified in the previous link i posted.
Eoin OSullivanConsultantCommented:
@1namyln - In order to make a USB drive bootable for Windows it needs to have a Windows MBR and VBR (Master Boot Record/Volume Boot Record).
You cannot use Disk Utility to create a Windows Bootable USB drive you can use the OSX program Boot Camp Assistant (located in Application:Utilities) which can prepare the USB drive to install a Windows ISO, download Windows drivers for OSX etc.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
1namylnAuthor Commented:
I remember that I could not in fact get this to work within Disk Utility.  I had to use the below tool.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Mac OS X

From novice to tech pro — start learning today.