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Level 1

12 points

No sound on 27 inch iMac Mid 2011 running Windows 8.1 on Botcamp

Hello! I just installed 8.1 on my Mac and everything went very well. Then only issue I found is the sound and the brightness. I try to turn down the brightness but nothing happens. The bar shows that it's going down but it isn't. The sound is also broken. When I try to turn up the sound, there is a circle with a cross with the volume icon. I tried many things to fix the sound issue. I tried downloading new drivers, updating drivers, etc. The brightness issue, I don't really care but it would be useful if we can fix it too. I talked to Microsoft about the sound problem and they said the only way to fix it is to get Windows 10. Unfortunately, my mid 2011 Mac does not support Windows 10 on boot camp. I'm in desperate need of the sound in windows so I need your help! Thanks!

Posted on Oct 15, 2017 8:28 PM

152 replies

Loner T

Level 9

59,477 points

Nov 15, 2017 3:20 PM in response to amytom12

Check the output of

csrutil status

If it is disabled, then run

sudo gdisk /dev/disk0

and continue with the commands as shown. Use defaults as indicated. Once completed, post the output of

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

amytom12 Author

Level 1

12 points

Nov 15, 2017 3:28 PM in response to Loner T

Okay, the partition is currently making. Meanwhile, I did those commands, and this is what I got this:

sudo gdisk /dev/disk0

Password:

GPT fdisk (gdisk) version 1.0.3

Warning: Devices opened with shared lock will not have their

partition table automatically reloaded!

Partition table scan:

MBR: protective

BSD: not present

APM: not present

GPT: present

Found valid GPT with protective MBR; using GPT.

Command (? for help): sudo gpt -vv -r show /dev/disk0

You may need to edit /etc/fstab and/or your boot loader configuration!

Command (? for help): sudo fdisk /dev/disk0

You may need to edit /etc/fstab and/or your boot loader configuration!

Command (? for help):

Loner T

Level 9

59,477 points

Dec 3, 2017 6:56 AM in response to amytom12

Even if you do not have important files and are willing to lose all data, the question is are you willing to spend time re-installing/re-building the iMac from scratch. The backups just help in a quicker erase/re-install.

amytom12 Author

Level 1

12 points

Oct 16, 2017 1:59 PM in response to Loner T

Hello. I just did msinfo32 and this is what I got.

So it's UEFI, how do I change it to BIOS? Do I have to reinstall Windows 8.1? And how to you install 8.1 into a BIOS?

amytom12 Author

Level 1

12 points

Oct 17, 2017 2:48 PM in response to Loner T

Okay, i'll get those drivers. But i'm running into an issue.

It's saying that even though I have my DVD + R DL in my optical drive.

amytom12 Author

Level 1

12 points

Nov 12, 2017 11:13 AM in response to Loner T

The first one on the list is my internal HD, the 2nd one is the disk with the ISO burned onto it, the 3rd one is my 32GB USB flash drive.

amytom12 Author

Level 1

12 points

Nov 12, 2017 11:22 AM in response to Loner T

Ok, I got an error. It says I have Windows 10 on my disk but I burned the Windows 8.1 ISO onto the disk, not windows 10.

amytom12 Author

Level 1

12 points

Nov 12, 2017 12:24 PM in response to Loner T

amytom12 Author

Level 1

12 points

Nov 12, 2017 12:41 PM in response to Loner T

That's what I got.

amytom12 Author

Level 1

12 points

Nov 12, 2017 1:01 PM in response to Loner T

This is the path command

This is the MD5 command

Loner T

Level 9

59,477 points

Nov 12, 2017 1:44 PM in response to amytom12

amytom12 wrote:

That's what I got.

This shows the file, but does not show the MD5. In the other output, neither the file is visible anymore, nor the MD5.

amytom12 Author

Level 1

12 points

Nov 12, 2017 1:57 PM in response to Loner T

cd /Users/XXXXXX/Desktop

-bash: cd: /Users/XXXXXX/Desktop: No such file or directory

amytom12 Author

Level 1

12 points

Nov 12, 2017 4:27 PM in response to Loner T

I'm still getting no string of code.

amytom12 Author

Level 1

12 points

Nov 13, 2017 12:37 PM in response to Loner T

Hello! I just did the NVRAM and SMC reset and I inserted my DVD back in and opened BCA. I selected "Install Windows 7 or 8" and clicked on Continue. Same error as before.

amytom12 Author

Level 1

12 points

Nov 13, 2017 3:31 PM in response to Loner T

Okay, but I'm running into an error. When I try to drag the unedited file into the folder, there is a stop sign.

No sound on 27 inch iMac Mid 2011 running Windows 8.1 on Botcamp