Win7 x64 booting natively via EFI (no BIOS emulation)

Discussion in 'Windows, Linux & Others on the Mac' started by VirtualRain, May 4, 2009.

  1. Sincci macrumors regular

    Joined:
    Aug 17, 2011
    Location:
    Finland
    #1101
    Btw, has anyone managed to get Windows 10 installed in Uefi mode with the brightness controls working? I recently managed to get my old mid 2009 13" MBP working almost perfectly with Windows 10 (with keyboard backlight and audio working properly), but I haven't been able to adjust my screen's brightness levels at all.
     
  2. HerrT macrumors newbie

    Joined:
    Sep 21, 2012
    #1102
    Success! but no audio

    After reading #1100 https://forums.macrumors.com/thread...o-bios-emulation.696523/page-44#post-24292585 at last I could activate the Intel HD 4000 graphics on my MacBook Pro Retina Mid 2012.
    1. installed GFXCardStatus 2.44i and set it to Integrated Only.
    2. booted from a freshly created Win 10 Pro installation USB stick made with the MediaCreationTool.
    I simply deleted the partition with macOS, formated it with NTFS and installed Windows 10 normally.
    3. installed all drivers via BootCamp an updated the Nvidia Geforce 650m. To successfully boot up Windows 10 I had to deactivate the other graphic card entry, first showed as basic display device. Later I even could install the Intel HD graphics driver. So both, the 650m and HD4000 are visible in the device manager.

    But I can't activate the Audio HD device at all. Please could someone let me know, how I could make it active.
    Do I have to use Grub oder rEFInd? Could someone please help me?
     
  3. monkeybagel macrumors 65816

    Joined:
    Jul 24, 2011
    Location:
    United States
    #1103
    FWIW, Audio is one of the most common issues installing Windows in EFI mode on machines prior to the first MacBook Air's that supported EFI in boot camp. If you did get it installed, you could not get Windows to accept any Audio drivers to enable sound.
     
  4. DragonDF macrumors newbie

    DragonDF

    Joined:
    Dec 14, 2017
    Location:
    Brazil
    #1104
  5. Core 2 Duo macrumors member

    Core 2 Duo

    Joined:
    Jan 13, 2018
    Location:
    Las Vegas
    #1105
    I know an easy way to install Windows 7 64 Bit on the Core 2 duo's but you have to access the drive you want to install it on either by removing the drive and connecting to another computer running Windows OS, Or through target disk mode and connected to another computer running Windows OS...
     
  6. HerrT macrumors newbie

    Joined:
    Sep 21, 2012
    #1106
    Oh yeh, I recognized that. But it should be possible to use an external sound card to get sound, shouldn't it? But, what is with the sound over HDMI? HDMI can't get sound from the external sound card, or? Damm, why Apple does such a stupid implementation. Does it make any sense to deactive the internal chipset graphics?

    Would be great to see a fully working UEFI on older Macs. Clover could do the trick, but AFAIK it destroys the content of an internal SMC or EFI chip. So I wouldn't try to install Clover an a real mac.
     
  7. Core 2 Duo macrumors member

    Core 2 Duo

    Joined:
    Jan 13, 2018
    Location:
    Las Vegas
    #1107
    The way i install Windows 7 64 bit all the hardware works correctly the first time !
     
  8. HerrT macrumors newbie

    Joined:
    Sep 21, 2012
    #1108
    Dear Core 2 Duo,

    on which Mac do you install this way?

    Best
     
  9. HerrT, Jan 15, 2018
    Last edited: Jan 15, 2018

    HerrT macrumors newbie

    Joined:
    Sep 21, 2012
    #1110
    Okay, your MacBook Pro has only a discrete graphics card. So it's nearly clear, that nothing will be disabled when installed in native EFI mode. In my MacBook Pro Retina 15" Mid 2012 and my former MacBook Pro 17" Mid 2009 are 2 graphics component - a internal and a discrete. Under BootCamp the internal chipset graphics is always disabled. As I described in Post #1102 I was able to activate both graphics components, but this disables the sound completetly.
     
  10. Core 2 Duo, Jan 15, 2018
    Last edited: Jan 15, 2018

    Core 2 Duo macrumors member

    Core 2 Duo

    Joined:
    Jan 13, 2018
    Location:
    Las Vegas
    #1111
  11. monkeybagel macrumors 65816

    Joined:
    Jul 24, 2011
    Location:
    United States
    #1112
    I haven’t tried this in a while on the Mac Pro 5,1. I know some were able to get it to work using a chain loading method, but I never could get video. I may try this using DISM to integrate the drivers from the Apple BootCamp drivers and from nVidia for the GTX980Ti and see what happens if I apply the WIM from a WinPE drive based on Windows 10 Enterprise 1709.
     

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