No sound after installing Windows 10 on Boot Camp

Hi Loner T., everyone, thanks for the feed,

Is a mid-2011 13' Macbook Pro suitable for Win10 BCA's through this?

I'm having the sound problem on Win10 (Code 10). I'm UEFI.

Facing the GPT v MBR problem I installed through a bootable 8.1 DVD (USB external SuperDrive as SSD extended), a bunch of DISKPART commands, an upgrade to 10 and a manual setup of some of the Bootcamp 5.1.5640 drivers as I was unable to follow the BCA process.

Aside from the GPT problem I got everything from the 'won't-let-you-create-a-bootable-pendrive', the 'won't-boot-on-install-if-not-pressing-alt', the 'black-screen-blinking-prompt', the 'no-bootable-device' to the classic 'frozen-please-press-any-key' before.

I changed OS (tried from El Capitan, Lion & Yosemite), did the info.plist twist (exluding the further steps detailed in the link you provided), nothing worked. I now understand I need to re-install Win10 with proper BCA steps but as far as you know is it possible on a mid-2011 13' MacBook Pro?

Thanks again.

Does your built-in Optical drive work? The 2011 MBPs are not officially supported, but in most cases, W10 will work. You will need to install on a disk which has a Hybrid MBR which bridges the GPT to a MBR.

I removed the build-in, replaced by a SSD drive and made a it a USB external optical drive. It worked installing Win8.1.

I'll check on how formating my drive in a Hybrid MBR and revert.

Thanks for the quick reply Loner.

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.

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.

Just wanted to say thanks, I was finally able to install Windows 10 to my MBP late 2011 after days of forum reading and countless pulled hair.

I just want to note though that I added an extra step:

I used the "erase" option to sort of reformat my drive to NTFS again, even though I did the Tuxera step. When I didn't do this step, when the windows installer boots, I get a black screen with a few text like "PRONTFS" or something on the upper left of the screen (weird btw). So I guessed it must have something to do with the NTFS partition.

Anyway, to anyone else who finds their way to this thread, I hope this helps as much as Andrii_UA's post helped me.

Loner T

Could you please give me a hand? I bought a macbook pro 13" 2012 and when i bought it the hard drive was broke and i thought it would be an easy fix but just replacing the hard drive and downloading snow leopard on to it but i wasn't that easy every time i try to download snow leopard it tells me that my computer is not compatible and i gave up and just installed windows 10 on it and let it set for a year because i didn't know about the drivers and stuff like that and i didn't really care because i have other laptops and computer but now i'm trying to get it fixed to use and i downloaded all of the drivers using boot camp and everything works besides the sound and i've tried just about everything that i've seen and it still dont work and i thought i would ask you to see if you can walk me through it or give me a few ideas on trying to fix it

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

It says UEFI

Now that i know it says UEFI i went back and read the first few comments on this and i still don't understand i'm not sure if i need to reinstall windows plus could it be because i used the p-key that was for my old computer that once had this hard drive in it or is it because i used windows media link to make my bootable USB and not an apple boot camp windows link. sorry for the dumb questions this is just driving me insane haha

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.

I don't remember how i installed it like i said i did it last year then the laptop sat in my office till like 4 days ago. How do i install it under legacy?

To avoid confusion, do you mind start a new discussion? Do you also have OS X installed on the same Mac, or is it Windows only?

It's only Windows 10 like i said when i put the new hard drive in and went to install Snow Leopard it said that my the computer was not compatible and to restart it by holding down the power button. I gave up on trying that and just installed windows. I know understand the problem with the UEFI but i don't know how to get it to legacy

Assuming that you can boot into Internet Recover (boot and hold Command+Opt+R), you can use How to install OS X on an external drive connected to your Mac - Apple Support and boot from it. The OS X version that you can install is listed in macOS versions and builds included with Mac computers - Apple Support for your specific model. Snow Leopard is not supported on your specific model.