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  1. #1


    Member Since
    Jul 17, 2010
    Posts
    1
    Problem with Windows 7 iso
    Sorry if this is a dumb question I don't know much. I am trying to get Windows 7 to run so I downloaded the Windows 7 Professional iso. When I try to burn it to a dvd with disk utility though I get an error: "Unable to attach 'Windows7Professional64bit.iso' (not recognized)" and I don't know why.... Any ideas? Thanks so much in advance

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,275
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Sounds like a corrupted ISO download. I assume you're downloading from the MS site or do you have a MSDN subscription? In any event, try downloading it again and burn the ISO once more. You might also trying burning the ISO with software other than DU (if you have other software). The slower the burn, the better.

    Regards.

  3. #3


    Member Since
    Feb 12, 2008
    Posts
    937
    This has happened to other posters - it's a big download and doesn't take much to get corrupted. As chscag says, most often a re-do of the download will fix the issue.

    Cheers

  4. #4

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,887
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    If Microsoft's retail sales use the same distribution method as they do for MSDN subscribers (and I'm not sure why they wouldn't), then they use their own download manager that has QA measures to ensure a good file.

    If what we're talking about here is a pirated copy, then go fish.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  5. #5


    Member Since
    Jul 16, 2010
    Location
    Ukraine, Kiev
    Posts
    40
    Press the right mouse button and then press the option button to reveal the "open with" command.
    I could offer to download the programs you need and upload them as ZIP instead of DMG.

  6. #6


    Member Since
    Feb 12, 2008
    Posts
    937
    It even happens with legit downloads, even with the QA checker. I had the same problem when I downloaded Ubuntu, for example. Cheers

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