Note: I am intentionally wanting to use Windows 10 in EFI mode instead of the legacy MBRBIOS method.I used this guide to install Windows 10 using EFI method: -bootcamp Below are the basic specs of my MacbookPro9,1 model: 15inch display with NO Retina i7-3720QM 2.6GHz with Intel HD 4000 integrated graphics Nvidia GeForce GT 650M dedicated graphics 8GB RAM EFI and SMC firmware are updated to latest by installing macOS Sierra I was able to successfully install Windows 10 using EFI method.
Intel High Definition Audio Drivers And SupportAfter installing Windows 10, I installed the latest v6 of Bootcamp drivers and support software.
![]() Intel High Definition Audio Windows 10 In EFIEverything works except for audiosound and Intel HD 4000 integrated graphics. To get the audiosound working, I tried running the following two files. ![]() In the Device Manager, I tried to update the drivers for Microsoft Basic Display Adapter by installing Intel HD 4000 graphics drivers using multiple methods below. In all cases, the drivers are detected but while the drivers are being installed, Windows crashes and automatically reboots. Letting Windows search automatically for updated driver software Bootcamp drivers located in BootCampDriversIntelIntelIvbWin10Graphics Intel HD 4000 graphics drivers on Intels Download center website It would be great if someone can help me get the sound working. What is the specific reason to try EFI on 2012 models I have EFI Boot on a late 2013 model 1315 Macs. Intel High Definition Audio Download The ProperWhen I look at Bootcamps info.plist, my model (MacbookPro9,1) is not listed under the preUEFI as show below: PreUEFIModels MacBook7 MacBookAir5 MacBookPro10 MacPro5 Macmini6 iMac13 Could it be that Bootcamp v6 is not downloading the proper drivers for the EFI install in order for the sound to work In macOS Sierra, is there any modifications I need to do to Bootcamps info.plist so that it will download the proper drivers that will enable the audio in EFI version of Windows 10 for my MacbookPro9,1 model. If you notice, there is not MBP8,x, MBP7,x,.. The array indicates the models or prior models as preUEFI. Please also see How to identify MacBook Pro models - Apple Support, which indicates that any MBP model, prior to Late 2013 is preUEFI. Do not modify the Info.plist. This is W10 on a 13-in MBP 2012 in legacy BIOS. ![]() I have some follow up questions: 1) I am still trying to understand what exactly is causing Intel HD 4000 drivers from being installed in the EFI mode It seems to detect that there is integrated graphics device and its missing the drivers, but upon installing the drivers, the system crashes. Is there no possible way with software modification, driver hacking, or EFI modification to get graphicsaudio to work in EFI install of Windows 10 on a PreUEFI model Is this a hardware issue or there is still hope for a software fix 2) Referring to question 1, is there a EFI firmware modification that can be done What if I install a firmware for a Macbook Pro 2014 or 2015 on my 2012 model Would it be even possible 3) One reason I was trying to do EFI install was so I can have more than 4 partitions on HDDSSD on my Macbook Pro mid 2012. Is there any other alternative you can suggest since I cant do EFI install of Windows 4) I did a MBRBIOS legacy install of Windows 10. There is only one issue; I am unable to get integrated Intel HD 4000 graphics to work. In the Device Manager, Intel HD 4000 display drivers are not visible. I manually tried to install the Intel HD 4000 drivers, but I am getting an error. Here are more details on the issue: rivers-missing-in-windows-10-bootcamp-on-macbook. Is there no possible way with software modification, driver hacking, or EFI modification to get graphicsaudio to work in EFI install of Windows 10 on a PreUEFI model Is this a hardware issue or there is still hope for a software fix The Audio devices are exposed by the CSM-BIOS layer which is supported on EFI systems. If EFI is used, the BIOS layer is never invoked, hence the missing devices. Instead of hackingmodifications, why not use the available method. This is by design. I have investigated the possibility of making the pre-2012 models as EFI compliant, but there is no interest.
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