Zoo65
Level 1 (10 points)

Q: Your bootable USB drive could not be created

I've read all the previous threads about this problem.  I am using Yosemite 10.10.2 and have created an iso file from a MS WIndows 7 Ultimate SP1 X64  DVD I bought from Amazon.  I have followed the instructions for Boot Camp found in the pdf file from Apple and the Boot Camp Help file.  I have successfully created two iso files since I was not sure the first one was a good image, although it checked out using Get Info.  What do I need to do to get Boot Camp Assistant to work?

 

Any ideas are welcome.  Thanks

Posted on Jan 30, 2015 9:49 PM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (23,898 points)
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A:

The issue is that the DVD has both 32-bit and 64-bit on the same media. It needs an ISO which has one or the either, but not both.

 

Can you find media which has individual 32-bit and 64-bit installers and support files on separate physical media? My W8.1 has two separate DVDs, one for each installation.

Posted on Jan 31, 2015 12:26 PM

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Zoo65

Q: Your bootable USB drive could not be created

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  • by Loner T,Solvedanswer

    Loner T Loner T Jan 31, 2015 12:26 PM in response to Zoo65
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    Jan 31, 2015 12:26 PM in response to Zoo65

    The issue is that the DVD has both 32-bit and 64-bit on the same media. It needs an ISO which has one or the either, but not both.

     

    Can you find media which has individual 32-bit and 64-bit installers and support files on separate physical media? My W8.1 has two separate DVDs, one for each installation.

  • by Zoo65,

    Zoo65 Zoo65 Jan 31, 2015 3:18 PM in response to Loner T
    Level 1 (10 points)
    Jan 31, 2015 3:18 PM in response to Loner T

    That's good news!  I will work at try to create the 64-bit ISO from my current DVD.  I also have two Windows laptops, one running 7 SP1 and one running 8.1.  So I may be able to use one of those machines to create the ISO I need.

     

    Thanks much for your patience and stamina working through my problem.

    I have to feed my pets and wall them, so after my evening meal I will set to work at creating the needed ISO file.

    I'll let you know how it goes.

    Best regards

  • by Loner T,

    Loner T Loner T Jan 31, 2015 3:33 PM in response to Zoo65
    Level 7 (23,898 points)
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    Jan 31, 2015 3:33 PM in response to Zoo65

    Zoo65 wrote:

     

    I have to feed my pets and wall them...

    Please, just walk them.

  • by Zoo65,

    Zoo65 Zoo65 Jan 31, 2015 3:38 PM in response to Loner T
    Level 1 (10 points)
    Jan 31, 2015 3:38 PM in response to Loner T

    LOL.  Will skip the wall for a walk. 

  • by Zoo65,

    Zoo65 Zoo65 Jan 31, 2015 8:05 PM in response to Zoo65
    Level 1 (10 points)
    Jan 31, 2015 8:05 PM in response to Zoo65

    It looks like it's going to work!  I found a Win 7 64-bt ISO file on the internet; and right now I am watching Boot Camp Assistant doing the creation process.

    I will post another reply when the process completes and I have a working Boot Camp partition, etc.

     

    Again many thanks for sharing your expertise, and your persistence in helping me solve my problem.

  • by Loner T,

    Loner T Loner T Jan 31, 2015 8:11 PM in response to Zoo65
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    Jan 31, 2015 8:11 PM in response to Zoo65

    Please make sure the Win7-64-bit is genuine, otherwise you will end up with malware/viruses. You may be able to get a valid ISO from Microsoft using your Product Key.

  • by Zoo65,

    Zoo65 Zoo65 Jan 31, 2015 8:15 PM in response to Loner T
    Level 1 (10 points)
    Jan 31, 2015 8:15 PM in response to Loner T

    Thanks.  I will check for that.

  • by Zoo65,

    Zoo65 Zoo65 Jan 31, 2015 9:56 PM in response to Zoo65
    Level 1 (10 points)
    Jan 31, 2015 9:56 PM in response to Zoo65

    Not so fast I guess.  When it got to the part about picking a partition to install Windows it gave me an error message when I chose the Boot Camp partitions that had just been created.  It said the partition needed to be NTFS and I could not figure out how to go any further.  This does not make sense to me since the instructions from the Boot Camp Assistant said MS-DOS Fat32 for the format.

     

    So I am giving up on these downloaded ISO files, and also trying to use the DVD I bought with both 32 and 64 bit versions that doesn't work.

     

    Not sure why I was able to create Boot Camp partitions and install Windows 7 on an older iMac 27" and a MacBook Air without ANY problems?

     

    I guess the latest version of Boot Camp and/or Yosemite are not so friendly as the ones I used a couple years ago.

  • by Loner T,

    Loner T Loner T Feb 1, 2015 6:20 AM in response to Zoo65
    Level 7 (23,898 points)
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    Feb 1, 2015 6:20 AM in response to Zoo65

    This is not an error. This is expected behavior. OS X has no mechanism to create a NTFS partition, so it creates a FAT partition, which the Windows Installer will prompt you to convert to NTFS.

     

    Please see https://help.apple.com/bootcamp/mac/5.0/help/#/bcmp173b3bf2.

  • by Zoo65,

    Zoo65 Zoo65 Feb 1, 2015 7:44 AM in response to Loner T
    Level 1 (10 points)
    Feb 1, 2015 7:44 AM in response to Loner T

    Thanks for that info.  I will give this onerous and much too difficult process a rest.  I have other pressing things that are more likely to return a positive result to attend to.  AND it's Super Bowl Sunday!

     

    Maybe I will come back to it tomorrow?

     

    Again thanks much for your support.

  • by Zoo65,

    Zoo65 Zoo65 Feb 2, 2015 5:49 PM in response to Zoo65
    Level 1 (10 points)
    Feb 2, 2015 5:49 PM in response to Zoo65

    I am happy to report that I now have a working Boot Camp partition with Windows installed on my second iMac 27"

     

    Thanks much to Loner T for hanging in there and helping me past my mistakes and educating me on how to perform the installation.

     

    I greatly appreciate the help and time spent working through the process with me.

     

    Best regards

  • by Loner T,

    Loner T Loner T Feb 2, 2015 6:21 PM in response to Zoo65
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    Feb 2, 2015 6:21 PM in response to Zoo65

    Excellent work.

  • by AhoiMarie,

    AhoiMarie AhoiMarie Apr 13, 2016 8:30 AM in response to Loner T
    Level 1 (8 points)
    Apr 13, 2016 8:30 AM in response to Loner T

    Hey,

     

    I am having the same problem. I searched many forums and tried everything suggested but nothing helped. So I hope someone here can help me! I can't get Windows on my USB and the MacBook is just telling me that the bootable USB drive could not be created..

    Here is what I have:

    MacBook Pro 2012, Yosemite

    Windows 7 as an ISO file download, not mounted, 3,27GB

     

    I tried:

    Restart

    Different USB (2 and 3) MS-DOS FAT32

    Running bootcamp with ticking/unticking the boxes in all possible combinations and with an USB with Windows (per drag/drop).

     

    I hope someone here can help me with this!

  • by Loner T,

    Loner T Loner T Apr 13, 2016 10:12 AM in response to AhoiMarie
    Level 7 (23,898 points)
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    Apr 13, 2016 10:12 AM in response to AhoiMarie

    What is the year/model of your Mac? Where did the W7 ISO come from?

  • by AhoiMarie,

    AhoiMarie AhoiMarie Apr 13, 2016 12:12 PM in response to Loner T
    Level 1 (8 points)
    Apr 13, 2016 12:12 PM in response to Loner T

    It is a MacBook Pro 13inch from 2012. I bought the licence for W7 legally in the internet, though not from the official windows website. And it is the 64 bit version.

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