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Install Windows 7 on UEFI and GPT disk

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PowershellMan Posted messages 36 Status Member -  
Malekal_morte- Posted messages 178136 Registration date   Status Moderator, Security Contributor Last intervention   -
Hello,
I currently have a laptop with Windows 10 installed (OEM type product key). My BIOS is UEFI and my hard drive is in GPT mode. To install Windows 7 (32-bit version) I need to convert my hard drive to MBR, and for that I need to format my hard drive, including the Recovery partition.

My question is as follows: can I format the Recovery partition and then reinstall Windows 10 (and then Windows 7) without losing my product key?

Feel free to let me know if I haven't been very clear.

Thank you in advance.

9 answers

  1.
    superbarnis Posted messages 4423 Registration date   Status Member Last intervention   519
     
    Good evening
    was your PC running Windows 7??
    if it's a recent one with Windows 10 you won't be able to install Windows 7 because Windows 7 won't have the drivers.
    Windows 7 managed AHCI disks (64 bit).

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  2. Malekal_morte- Posted messages 178136 Registration date   Status Moderator, Security Contributor Last intervention   24 711
     
    Hello,

    To install Windows 7 (32-bit version) I need to convert my hard drive to MBR

    That's not necessary at all.
    The latest Microsoft ISOs support EFI and GPT mode.







    But anyway, you're trying to install Windows 7 on a computer that originally runs Windows 10.
    You don't have a license...
    Then read: https://www.commentcamarche.net/faq/47812-revenir-de-windows-10-a-windows-7

    Please press a key to continue the cleaning...
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  3. PowershellMan Posted messages 36 Status Member 13
     
    Hi, if I have a Retail license for Windows 7.

    Regarding the partitions, does that mean I can install Windows 7 without converting anything?

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    Posted from https://itunes.apple.com/fr/app/ccm-live-discussion-forum/id871822609?mt=8
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    1. Malekal_morte- Posted messages 178136 Registration date   Status Moderator, Security Contributor Last intervention   24 711
       
      Yes.

      Deactivate the license on the other computer: https://www.malekal.com/licences-et-activation-de-windows/#Desactiver_la_licence_sur_lrsquoancien_ordinateur


      1) Download the Windows ISO from the Adguard site, which allows you to download the official Microsoft ISOs: Download Windows installation ISOs
      2) Create a Windows installation USB drive that will serve as the installation media for Windows 7: How to create a Windows installation USB drive
      3) Boot from it by modifying the boot sequence and indicating the USB drive or DVD: How to boot the computer from a USB drive

      The Windows 7 installation program will then start...
      Follow the instructions in this tutorial: How to install Windows 7.
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  4. PowershellMan Posted messages 36 Status Member 13
     
    Okay, I just deactivated the license on the old computer.

    But for your "no" edit, does that mean I have to convert if I want to install in 32-bit?

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    Posted from https://itunes.apple.com/fr/app/ccm-live-discussion-forum/id871822609?mt=8
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    1. Malekal_morte- Posted messages 178136 Registration date   Status Moderator, Security Contributor Last intervention   24 711
       
      No, it's fine, sorry,
      I had a little doubt but I just checked, it's all good.
      I'll edit to add screenshots of Windows 7 on a GPT disk.
      Windows is currently installing.
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  6. PowershellMan Posted messages 36 Status Member 13
     
    Sure, thank you very much for your dedication :)

    PS: your site is very well done

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    Posted from https://itunes.apple.com/fr/app/ccm-live-discussion-forum/id871822609?mt=8
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  7. raspey Posted messages 9414 Status Member 249
     
    Hi, did you succeed?
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  8. PowershellMan Posted messages 36 Status Member 13
     
    I will test this later and let you know if it works.

    Thanks everyone!

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    Posted from https://itunes.apple.com/fr/app/ccm-live-discussion-forum/id871822609?mt=8
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  9. PowershellMan Posted messages 36 Status Member 13
     
    I just tried to install Windows, but it's impossible: I have to use a disk in MBR :(

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    1. Malekal_morte- Posted messages 178136 Registration date   Status Moderator, Security Contributor Last intervention   24 711
       
      Did you make a recent installation USB drive? Because if your ISO or DVD is outdated, it won't work.
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