MacBook Pro 2012 sound not working Windows 10

Good afternoon.

I needed windows. Installed on a flash drive using Rufus, the image of Windows 10pro, bootkama.
Everything rises and works perfectly. Except one. There is no sound. And there is a sound slider - it seems like it works - but in fact - no.
I can make a sound for airpods - but for speakers - it doesn’t work. I updated the apple system application on Windows, updated the boot, installed all the Windows updates - nothing worked.
Reinstalled the system 2 times - the result is one - everything works except for the sound. (Imac 2019). I ask for help.

ATI Radeon HDMI @ AMD Greenland - High Definition Audio Controller PCI
Cirrus Logic CS42L63A @ Intel Cannon Point PCH - cAVS (Audio, Voice, Speech) [B0] PCI

Good afternoon.

I needed windows. Installed on a flash drive using Rufus, the image of Windows 10pro, bootkama.
Everything rises and works perfectly. Except one. There is no sound. And there is a sound slider - it seems like it works - but in fact - no.
I can make a sound for airpods - but for speakers - it doesn’t work. I updated the apple system application on Windows, updated the boot, installed all the Windows updates - nothing worked.
Reinstalled the system 2 times - the result is one - everything works except for the sound. (Imac 2019). I ask for help.

ATI Radeon HDMI @ AMD Greenland - High Definition Audio Controller PCI
Cirrus Logic CS42L63A @ Intel Cannon Point PCH - cAVS (Audio, Voice, Speech) [B0] PCI

View attachment 906312 View attachment 906313

You will need to manually update the driver for the "High Definition Audio Device" to use the Cirrus driver located in the Windows Support folder. This is caused by a Windows Update forcing it to use the generic driver by default. If you need any assistance with this, shoot me a PM and I can assist you remotely over Quick Assist. Unfortunately, we have run into this issue with our 12 iMacs in one of our classrooms.

Thank you very much. Everything worked out! You're a wizard

Hello from Spain! I've got the same problem as oxidia , please Altemose could you help me to find the folder youre talking about? I've got no sound on win10 in in the Imac , thanks for all in advance. A greeting

Hello from Spain! I've got the same problem as oxidia , please Altemose could you help me to find the folder youre talking about? I've got no sound on win10 in in the Imac , thanks for all in advance. A greeting

The folder will be found within the WindowsSupport folder downloaded by the Boot Camp Assistant. If you do not have the original flash drive used to install Windows (if applicable) or the files downloaded in a safe location, you will need to download them again using Boot Camp Assistant within macOS. Launch Boot Camp Assistant and chooses "Action" --> "Download Windows Support Software" and save the file to a flash drive or cloud storage location.

After downloading, boot into Windows and navigate to the WindowsSupport folder that was downloaded. Within that folder, you will notice that there are two folders with one being called "WinPE" or something similar (depending on version). Open Device Manager as an Administrator, navigate to the "High Definition Audio Device", right click and Update Driver and manually point it to the Cirrus driver within the WindowsSupport --> WinPE folder. The computer will need to be restarted after application of the new driver in order to have the outputs properly identified. Please let me know if you have any questions!

The folder will be found within the WindowsSupport folder downloaded by the Boot Camp Assistant. If you do not have the original flash drive used to install Windows (if applicable) or the files downloaded in a safe location, you will need to download them again using Boot Camp Assistant within macOS. Launch Boot Camp Assistant and chooses "Action" --> "Download Windows Support Software" and save the file to a flash drive or cloud storage location.

After downloading, boot into Windows and navigate to the WindowsSupport folder that was downloaded. Within that folder, you will notice that there are two folders with one being called "WinPE" or something similar (depending on version). Open Device Manager as an Administrator, navigate to the "High Definition Audio Device", right click and Update Driver and manually point it to the Cirrus driver within the WindowsSupport --> WinPE folder. The computer will need to be restarted after application of the new driver in order to have the outputs properly identified. Please let me know if you have any questions!

Thanks for this info! I,ve installed win10 by a flash drive, i didnt use bootcamp, i did it like a pc native... I cant go back to macOS... Could i find this files in any folder now? Thanks for your patience.

Thanks for this info! I,ve installed win10 by a flash drive, i didnt use bootcamp, i did it like a pc native... I cant go back to macOS... Could i find this files in any folder now? Thanks for your patience.

Did you use the Boot Camp Assistant to create the Windows 10 flash drive? If so, the WindowsSupport folder will be on it. What model iMac do you have? I might be able to send you the driver if you cannot get access to it again.

Hi, ALTEMOSE facing the similar issues with my iMac with my sound...
its a(mid 2011 21.5 inch) 12,1 High sierra
a Samsung SSD850 EVO 1TB SSD replaced..

windows 10 pro @ bootcamp, hv sound issues using bluetooth speakers.. could you help me out on this.. if its not a problem.. THNX.

Hi, ALTEMOSE facing the similar issues with my iMac with my sound...
its a(mid 2011 21.5 inch) 12,1 High sierra
a Samsung SSD850 EVO 1TB SSD replaced..

windows 10 pro @ bootcamp, hv sound issues using bluetooth speakers.. could you help me out on this.. if its not a problem.. THNX.

To confirm, sound is working properly with the internal speakers and headphone jack correct? While the 2011 iMacs are not officially supported in Windows 10, I cannot see a valid reason you are having issues. One thing that is different in Windows 10 is the way that it switches audio output devices, and you can click on the volume icon and you may see an up arrow. Select that and see if it gives you an option to change outputs. We see this issue often with the Intel Display Audio driver, but that should not be applicable with your iMac.

To confirm, sound is working properly with the internal speakers and headphone jack correct? While the 2011 iMacs are not officially supported in Windows 10, I cannot see a valid reason you are having issues. One thing that is different in Windows 10 is the way that it switches audio output devices, and you can click on the volume icon and you may see an up arrow. Select that and see if it gives you an option to change outputs. We see this issue often with the Intel Display Audio driver, but that should not be applicable with your iMac.

View attachment 911746

the cirrus driver is missing thou>> I hv it in my usb drive used for installing windows but its not installing as i tried doing it twice. using my bluetooth devices for output.. Thnx.

the cirrus driver is missing thou>> I hv it in my usb drive used for installing windows but its not installing as i tried doing it twice. using my bluetooth devices for output.. Thnx.

To confirm, Windows is installed on the internal hard drive or solid state drive, correct? One thing that I have noticed on 2011-2012 era machines from certain vendors is that they will not properly detect the audio and graphics cards when in uEFI mode. The quick and dirty fix for this is to reinstall Windows from a DVD, as it forces the system to use legacy BIOS emulation. This was most common on mid-2012 MacBook Pros, which I believe is the only officially supported system with this issue. It would not surprise me if the iMac has the same problem.

Did you use the Boot Camp Assistant to create the Windows 10 flash drive? If so, the WindowsSupport folder will be on it. What model iMac do you have? I might be able to send you the driver if you cannot get access to it again.

Hello! I am having the same problem as Mr. Moises Sanches Bustos since I installed Windows 10 on my macbook air using a USB Bootable devide without the help of a Boot Camp Assistant. Would you mind to send the driver since I do not have the WindowsSupport folder. This is my email: Thank you very much!

Hello! I am having the same problem as Mr. Moises Sanches Bustos since I installed Windows 10 on my macbook air using a USB Bootable devide without the help of a Boot Camp Assistant. Would you mind to send the driver since I do not have the WindowsSupport folder. This is my email: Thank you very much!

Do you still have macOS installed on your system? If so, you can download the driver package using the Boot Camp Assistant --> Action --> Download Windows Support Software. I can send you the drivers, but I don't think they will work for you since the system we had the troubles with was an iMac, and thus would have a different sound driver.

Do you still have macOS installed on your system? If so, you can download the driver package using the Boot Camp Assistant --> Action --> Download Windows Support Software. I can send you the drivers, but I don't think they will work for you since the system we had the troubles with was an iMac, and thus would have a different sound driver.

Hi! Thank you for responding to my inquiry. Fortunately, the problem was fixed yesterday when I downloaded and installed drivers from the Boot Camp Assistant and not the Boot Camp Assistant itself. Thank you again, and stay safe!

Вы использовали Ассистент Boot Camp для создания флэш-накопителя Windows 10? Если это так, то на нем будет папка WindowsSupport. Какая у вас модель iMac? Я могу отправить вам драйвер, если вы не сможете снова получить к нему доступ.

iMac 2011 последняя
Очень долго искал решение проблемы со звуковым драйвером, DVD-Rom не работает, пришлось установить Windows 10 прямо из-под UEFI, но звуковая карта не определяется, не могли бы вы прислать мне драйвер по почте или дайте ссылку на облако?

iMac 2011 последняя
Очень долго искал решение проблемы со звуковым драйвером, DVD-Rom не работает, пришлось установить Windows 10 прямо из-под UEFI, но звуковая карта не определяется, не могли бы вы прислать мне драйвер по почте или дайте ссылку на облако?

A 2011 iMac is technically unsupported under Windows 10 (also, pardon the translation). As for the drivers, you will need to snag a copy of the Boot Camp drivers. To do so, reboot to macOS and open Boot Camp Assistant. You can download the drivers from there. If you copy that to a USB drive and install on Windows, everything should work except potentially sound. If sound works, uninstall the audio devices and the Intel Audio devices as well and restart and it should work.

To confirm, Windows is installed on the internal hard drive or solid state drive, correct? One thing that I have noticed on 2011-2012 era machines from certain vendors is that they will not properly detect the audio and graphics cards when in uEFI mode. The quick and dirty fix for this is to reinstall Windows from a DVD, as it forces the system to use legacy BIOS emulation. This was most common on mid-2012 MacBook Pros, which I believe is the only officially supported system with this issue. It would not surprise me if the iMac has the same problem.

Hey @altemoose

I've run into this same problem and I'm looking for some advice. Details below:

• MBP mid-2012, Catalina 10.15, SSD
• Downloaded W10 via Boot Camp Assistant and installed manually
• Works great except the audio
• Have reinstalled drivers (from Realtek and then from BootCamp Support docs)
• When I try to follow your above advice (Device Manager>System Devices>HD Audio Controller>Update Driver>manually point it to Cirrus) It says the drivers are already up to date and won't do anything.
• Still having issues
• I can't install from a DVD, are there other ways to fix this?

Thanks!

On the 2011 at least if using UEFI you can create a DSDT patch and enable test signing mode and that will fix audio. See https://egpu.io/forums/pc-setup/fix-dsdt-override-to-correct-error-12/

This works for me on a 2011 iMac.

An alternative option is to create a DSDT patch and use it with OpenCore.

I'm now booting UEFI Windows 10 off an external TB3 NVMe SSD and the Windows built-in sequential speed test reports speeds over 700MB/s for read and write. Not bad, when an internal SATA III SSD would be capped to a theoretical 600 MB/s.

2011 iMac -> TB(1/2) cable to Apple TB3 to TB2 adapter -> TB3 dock (AC powered) -> bus powered TB3 NVMe drive. The dock is needed as the TB3 to TB2 adapter won't supply power to the bus powered drive I chose.

Hey @altemoose

I've run into this same problem and I'm looking for some advice. Details below:

• MBP mid-2012, Catalina 10.15, SSD
• Downloaded W10 via Boot Camp Assistant and installed manually
• Works great except the audio
• Have reinstalled drivers (from Realtek and then from BootCamp Support docs)
• When I try to follow your above advice (Device Manager>System Devices>HD Audio Controller>Update Driver>manually point it to Cirrus) It says the drivers are already up to date and won't do anything.
• Still having issues
• I can't install from a DVD, are there other ways to fix this?

Thanks!

@jwix - to my knowledge, the only way to correct this issue is to use BIOS emulation. This can only be triggered by installing from a DVD in my experience. That said, @mdgm's advice may prove useful for you since it can be triggered after installation.

To confirm, Windows is installed on the internal hard drive or solid state drive, correct? One thing that I have noticed on 2011-2012 era machines from certain vendors is that they will not properly detect the audio and graphics cards when in uEFI mode. The quick and dirty fix for this is to reinstall Windows from a DVD, as it forces the system to use legacy BIOS emulation. This was most common on mid-2012 MacBook Pros, which I believe is the only officially supported system with this issue. It would not surprise me if the iMac has the same problem.

Please help me how to installed legecy bios