Restoring Windows 7 after failed upgrade to Windows 10

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  1. Posts : 18
    Windows 7 64 bit Professional
    Thread Starter
       #11

    @torchwood
    I presume I need to restore Windows 7 to run this. But I know the Windows 7 OS wasn't a retail edition because I looked for the product key in the registry before trying to do the upgrade and it's not a 25 character string, it's only 20 characters and has the letters OEM in the middle.
    The laptop is an old school computer so would have been originally set up ages ago by the school's IT department.
      My Computer


  2. Posts : 15,675
    7 X64
       #12

    simonc8 said:
    Do you think there is any chance that I could go straight to a clean install of 64-bit Windows 10 and use the genuine ticket method to activate it?

    Yes, it doesn't depend on the bit version.

    you could mount the .vhd file in diskmgmt make sure it has a letter, and then run winntsetup which will show the key of all attached installations. Then you can check it with one of the key checker programs.

    winntsetupv425
    https://mega.nz/folder/ObATya7C#oR2t79bT-4MGjKxOAYwkbQ

    rt click in the top pane and select local windows and it will show you

    Restoring Windows 7 after failed upgrade to Windows 10-winntsetup-localwindows.jpg
    Last edited by SIW2; 07 Oct 2022 at 15:37.
      My Computers


  3. Posts : 18
    Windows 7 64 bit Professional
    Thread Starter
       #13

    It worked!!!

    A clean install using the 64-bit Windows 10 ISO was activated using the genuineticket.xml file. So for some reason that method works for 64-bit but not for 32-bit.

    Thanks to everyone who made suggestions.
      My Computer


  4. Posts : 7,192
    Windows 7 HP 64
       #14

    Now that you have a "Digital License" for the laptop you can reinstall Win 10 32 or 64 Bits that it will activate without using the genuineticket.xml file.

    If the laptop has 4G or less memory it will work better with 32 bits
      My Computers


  5. Posts : 15,675
    7 X64
       #15

    That momentus is an interesting disk.
      My Computers


 
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