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Thread: Fix: Vista to Windows 7 Upgrade hangs at 62%

  1. #1
    HappyAndyK's Avatar
    HappyAndyK is offline Site Administrator
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    Post Fix: Vista to Windows 7 Upgrade hangs at 62%

    Upgrade stops responding (hangs) at 62% when you upgrade to Windows 7

    When you try to upgrade your computer from Windows Vista to Windows 7, the upgrade process stops responding at 62% indefinitely.

    This problem occurs because the Iphlpsvc service stops responding during the upgrade.



    To resolve this problem, follow these steps:

    - Restart the computer. Then, your computer will roll back to Windows Vista.
    - Click Start, right-click Computer, and then click Properties.
    - On the Advanced tab, click Environment Variables.
    - Under System variables, click New.
    - Type MIG_UPGRADE_IGNORE_PLUGINS in the Variable name field.
    - Type IphlpsvcMigPlugin.dll in the Variable value field.
    - Click OK three times to close the dialog boxes.
    - Start the upgrade installation again.

  2. #2
    HappyAndyK's Avatar
    HappyAndyK is offline Site Administrator
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    There is also now a FixIt solution available from Microsoft: Microsoft Fix it BLOG : Upgrade hangs at 62% when you upgrade to Windows 7 from Windows Vista

    Note: Do not use this Fix It if the upgrade stops responding at a percentage other than 62%.

  3. #3
    leofelix is offline Member
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    Last edited by leofelix; 3rd November 2009 at 13:21.

  4. #4
    seti is offline Member
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    Both of you beat me to this

  5. #5
    nitinagarwal1988's Avatar
    nitinagarwal1988 is offline Microsoft MVP
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    It's also good to stop services of your antivirus or security suites before you start upgrading you system.

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