Installing Windows 7 on the pure UEFI systems without CSM

Discussion in 'Windows 7' started by PrimeExpert Software, Jan 2, 2020.

  1. ExtremeGrief

    ExtremeGrief MDL Senior Member

    Jun 2, 2020
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    Yes
     
  2. yescn

    yescn MDL Junior Member

    Feb 12, 2020
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    7899,7963,7997 can be started on VirtualBox with UEFI enabled
     
  3. Baldiman TV

    Baldiman TV MDL Member

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    #143 Baldiman TV, Dec 31, 2021
    Last edited: Dec 31, 2021
    That means that Windows 8 7899 is the first build to support UEFI w/o CSM, but I need to verify it first UPD: @yescn , could you send me proof of successfully running Windows 8 7899 on VirtualBox with UEFI enabled? Because I am not going to spend many hours to download Windows 8 7899 just to test if it is UEFI class 3 capable or not
     
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  4. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    I sill try 7889 if i can find it
     
  5. Baldiman TV

    Baldiman TV MDL Member

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    Did 7899 work for you on UEFI class 3?
     
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  6. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    Wasn't able to find iso link with high speed download
     
  7. Baldiman TV

    Baldiman TV MDL Member

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    Try Free Download Manager in order to fast download files from archive.org
     
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  8. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    I will try internet download manager
     
  9. Baldiman TV

    Baldiman TV MDL Member

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    And... does you have downloaded 7899?
     
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  10. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    7899 didn't boot on UEFI Class 3.
     
  11. Baldiman TV

    Baldiman TV MDL Member

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    #151 Baldiman TV, Jan 4, 2022
    Last edited: Jan 4, 2022
    Ok, then try 7904 Server (on UEFI class 3 PC), 7927 and 7955 x86 (on VirtualBox with UEFI enabled, but however, you may need to manually install it via deploying install.wim, because only 7927's install.wim leaked, and 7927 iso in the internet uses Windows 7 RTM x86 PE, which is not compatible with UEFI at all (does not matter that UEFI with or without CSM)), and 7962 and 7963 x64 (optionally try x86 version of 7963)
     
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  12. ExtremeGrief

    ExtremeGrief MDL Senior Member

    Jun 2, 2020
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    Nevermind i got it to boot!
    But i cant install as no USB drivers
     
  13. Baldiman TV

    Baldiman TV MDL Member

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    #153 Baldiman TV, Jan 4, 2022
    Last edited: Jan 4, 2022
    Try to install it from Windows 8+ PE, and BTW does 7899 boots with Secure Boot enabled?
     
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  14. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    How will it help? I still won't have USB after that
     
  15. Baldiman TV

    Baldiman TV MDL Member

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    Try to install it from DVD if you have it, and Windows 8+ have built-in USB 3.0 drivers, but... stop, USB 3.0 drivers was introduced in Windows 8 7814, but maybe it not compatible with your USB 3.0 controller, but... if you have only USB 2.0, then... still try to run 7899's setup from Windows 8+ PE
     
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  16. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    My PC doesn't have DVD
    I will try to integrate drivers from Windows 7 or 8
     
  17. Baldiman TV

    Baldiman TV MDL Member

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    Windows 7 drivers might be compatible with Windows 8 7899, but Windows 8 drivers... I don't think that it will work with 7899
     
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  18. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    I used generic USB driver ported from 8 to 7 and it worked and i installed the beta on it on UEFI class 3 laptop
     
  19. Baldiman TV

    Baldiman TV MDL Member

    Sep 13, 2020
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    Proof?
     
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  20. ExtremeGrief

    ExtremeGrief MDL Senior Member

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    How to give proof