No sound after installing Windows 10 on Boot Camp

Ok, I understand I may be a bit late to the party, but I had just solved the same problem with Windows 10. Now I am writing this under my Windows 10 account, while listening to Aristocrats Radio =)

I have a MacBook Pro 13" (mid-2012), 500 GB SSD and 16 GB RAM.

This issue boils down to a poor EFI support on older MacBooks. Boot Camp assumes it can do just fine with this, when creating a USB installer and partitioning the hard drive. However, EFI boot mode exposes devices in a different way, which effectively leads to audio not working.

Basically, the solution is to use a legacy MBR boot mode, when installing Windows. However, due to Boot Camp's tricky partitioning of a hard drive, legacy mode will not allow Windows installation to that partition (the infamous message "Windows cannot be installed. The selected disk is of GPT partition style" etc.).

To install Windows 10 without any of these problems, I did the following:

0. Saved the latest Windows drivers to a USB stick via Boot Camp.

1. Burned a Win10 ISO image to a DVD.

2. Merged a Boot Camp-created partition back to a single MacOS partition (did that via Boot Camp).

3. Created a new partition for Windows 10 in a Disk Utility (I assigned 100 GB, formatted to FAT).

4. Re-formatted this new partition to NTFS, using a third-party software. I used Tuxera NTFS for Mac (http://www.tuxera.com/products/tuxera-ntfs-for-mac/). It has a 15-day free trial.

5. Put my fresh Win10 DVD to an optical drive and rebooted, while holding Option key (alt).

6. In a boot options screen, I selected DVD "Windows" (Do not choose EFI boot.). Windows installation started.

7. In a Windows Installer Disk selector screen, I chose to install Windows to that NTFS partition created earlier.

It all went smoothly afterwards. Windows reboots a few times during installation process, as usual. In these cases please hold Option key during reboot, and then select to boot from hard drive "Windows".

After Windows is installed, do not forget to install latest Windows drivers from your USB stick.

NB: Before all that, I also played a bit with marking my MBR partition from hybrid to protected (see here: http://fgimian.github.io/blog/2016/03/12/installing-windows-10-on-a-mac-without- bootcamp/). However, I am not sure this actually was important in my case.

Your Mac has Cirrus drivers, not RealTek. I have the same Mac. Can you delete the device and Repair BC drivers?

Specifically on a 2012 MBP (i have one as well), W10 must be installed using legacy BIOS to be able to see Audio devices. Was your disk partitioned using BC Assistant or Disk Utility?

This is from my Mac. Notice the Cirrus Audio devices.

This happens, because you have used Alt/Option to start from the USB installer and chosen EFI Boot. Without such an interruption, your specific Mac model will always use an MBR/BIOS method. If BCA failed to create the MBR properly, it can be easily corrected.

ruieduardo.fa.lopes wrote:

The only thing I made off-the-instructions was deleting the hybrid MBR partition, as a solution to an error on Windows installation, with the gdisk command on terminal.

This can result in the Audio issues, because the CSM-BIOS layer extracts the sub-devices which are Cirrus Audio devices. On preUEFI Mac like yours, this did not happen, so you do not have any Audio devices and hence no drivers can be installed. Can you describe what was the issue which required the MBR to be deleted? Was it a GPT vs MBR issue?

Just broke, a bad CD (had a little breach, noticed after looking inside and seeing the CD and tiny pieces) exploded when reading, so the superdrive got unusable.

for anyone reading this looking for a solution

Right now im on Windows 10 without any sound, keyboard or mouse problem, the final and best way is to only use bootcamp to partition your hard drive (you need to mod bootcamp with this Enable Bootcamp to install from usb for OSX 10.9**WORKS**) so you can partition your hard drive without superdrive, you just unselect download and create usb media and you can now partition your drive, you need to do it with bootcamp (because sound and etc problems are because the installation was EFI Mode or without Hybrid MBR) then do this tutorial and all fine https://www.youtube.com/watch?v=cG1gdImjy8k works on El Capitan too so dont worry.

I hope this last info can help ppl with the same problems. Because this was the best install i ever did. Clean, and without needing superdrive/usb nor sound/keyboard/mouse problems

I have a Macbook 8, 1 (Late 2011) I struggle getting the sound to work and I was successfully able to do so and installed Windows 10. This can be done with Windows 8 too. Forget about Bootcamp. After soooo many attempts I got it to work!. Super easy, you need to install windows with UEFI Support.

1. Partition your windows drive with DiskUtility

2. Insert your Windows DVD

3. Restart your Mac

4. Hold the Option button when booting

NOTE: You may see 3 options (Mac OS, Windows, and EFI Boot)

5. SELECT "Windows"

6. Install

7. Once Windows is installed, install the Bootcamp drivers

8. Enjoy the sound of your Mac

Also, you can create a USB flash drive to install Windows. Follow the link below for more info.

http://www.windowscentral.com/how-create-windows-10-usb-installation

Please let me know if you have any questions. Enjoy amigos!

SagaJim

On the Windows side, can you run msinfo32 and check the setting of BIOS Mode?

The UEFI installation will not work on this Mac. Was this an upgrade from W7/8+ or a clean installation?

Please see Bootcamp 6.0 driver install interrupted .

Temporarily, put the Optical drive in it's original location. Out the designated drive for Windows in main bay, and install Windows normally, then replace the Optibay drive with the drive of your choice and test.

No. It will require a re-installation of Windows 10.

Run BCA and follow prompts. If it fails with the GPT vs MBR error, please post back.

Use Windows 10 on your Mac with Boot Camp - Apple Support.

How to install Windows using Boot Camp - Apple Support

Did you select EFI Boot?