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I installed windows 10 on my IMac 21.5-inch Mid 2011 El Capitan OSX. Everything was working but the there was no sound. Looking for answers but i can't find one. I tried to re-install Real-tek and the Cirrus audio from Bootcamp folder, restart it but nothing happened. I need help, will follow any instructions for this to work or send pictures etc...
iMac
Your ISO file should be less than 4.75Gb. Buy DVD-R Single Layer media. Right-click on the ISO and select Burn, expand the dialog box and use the lowest Burn rate to avoid book errors.
Here is an example of the Burn dialog box. The Verify and Mount help ensure that the DVD will work.
2011 Macs do not properly support Windows installation using a USB installer, using the Info.plist modification method. Does the built-in Optical drive work properly? If yes, you will need to use a physical DVD to install Windows.
Please be aware that W10 is not officially supported by Apple on your specific model. See Use Windows 10 on your Mac with Boot Camp - Apple Support as a reference.
2011 iMacs come with a built-in DVD/CDrom. Can you identify the specific model you have from Identify your iMac - Apple Support ?
BC Assistant will not allow W10 to be installed on a 2011 iMac, however, you can install W8.1 and then execute an in-place upgrade to W10. This also has the advantage of your audio working under W8.1 and the drivers are 'grandfathered' into W10 during the upgrade.
From the link you posted, your Mac has
Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW)
This means you need to use a physical DVD to install W7/W8.1.
W10 will also work, if you install using legacy BIOS, not EFI Boot, but there are no certified drivers for W10 on a 2011 Mac. Your model is not listed in Use Windows 10 on your Mac with Boot Camp - Apple Support , as supported.
Zonex1 wrote:
Can you explain legacy BIOS?
To support older versions of Windows (WXP, Vista, W7), BC Assistant overlays the disk with a mapping called Hybrid MBR. This type of partitioning allows the Windows installer to use the older BIOS installation method. It has come limitations. You cannot have more than four (4) partitions. This layout has EFI, OS X, Recovery HD and Windows as the four partitions. Once you install W7/W8.1 using this method, your Audio will work properly. If you need W10, you will need to execute an in-place upgrade W7/W8.1 to W10. You can run a clean install of W10.
Zonex1 wrote:
So i can still use an usb using legacy BIOS?
You cannot use a USB Installer to install Windows. You must use a physical DVD created from the appropriate ISO.
Did you use Boot Camp to install Windows are you using it in a virtualization app such as Parallels?
I used the Boot Camp, With Downloading windows 10 ISO Image file in Formatted MS-DOS FAT USB.
Thank you,
I am asking the moderators to move this thread to the correct forum, the Boot Camp forum.
Sorry if i don't understand some of your words but, what doyou mean built-in Optical drive?
So i have two options, download Windows 8.1 or use a physical dvd and install Windows 10?
Can you explain legacy BIOS?
So i can still use an usb using legacy BIOS?
Sorry for the questions!
Which Windows 7 cd should i buy?
If you have a valid W7 Product Key, you can download a W7 ISO for free from https://www.microsoft.com/en-us/software-download/windows7 and burn it to a physical DVD on your Mac.
I can do this same as windows 8.1 right?
What type of DVD (DVD±R DL/DVD±RW/CD-RW)
No sounds in Windows 10 [IMAC]
