Driver problems (Windows 10)

To start off I have a late 2014 iMac with an Intel i5 and I used Bootcamp in order to download Windows 10. A couple of years back I accidentally deleted the macOS partition and have been using just Windows 10. However, I have no interest in going back to macOS so it didn't bother me. About a couple of months back I was able to download Windows 11 through some workarounds however, I faced some compatibility issues and decided that it wasn't worth it and that it would be best for me to go back to Windows 10. Since over 10 days had passed I couldn't just go back through the settings page and instead had to download a new media installation of Windows 10 from Microsoft's website. Everything had been going well until I realized that Bluetooth didn't work and in fact, wasn't even an option in my device manager. Not only that Facetime Camera also doesn't have its necessary drivers alongside 2 other unknown devices. Checking the properties page allowed me to figure out that those 2 other devices were located on( Intel(R) HM87 LPC Controller - 8C4B and Microsoft ACPI-Compliant System). I need Bluetooth to work since my headphones only support Bluetooth, and to make matters worse even if I wanted to just use my computer speakers they don't work either even though Windows insists that there are no problems with them. I don't think it is a hardware issue as the speakers still play the start-up sound. I was unable to find any of these drivers online, please help I am lost.

Windows

Posted on Nov 23, 2023 8:25 PM

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Posted on Dec 1, 2023 7:25 PM

FYI, you could boot the Mac into Internet Recovery Mode using Command + Option + R to attempt to access the online macOS 11.x Big Sur to install to an external USB3 drive so you don't mess up any of the partitions on the internal drive which could prevent Windows from booting. Now you have a bootable external macOS drive where you can use Bootcamp Assistant to create a Windows USB installer & access the Apple drivers.


Keep in mind if you never installed Big Sur on this Mac before, then it will need to update the system firmware. There is a slim chance it could break something with Windows. Just wanted to put that out there so you can determine if it is worth the risk. Unfortunately older macOS online installers may no longer be available, but you can try to access them using Command + Option + Shirt + R. Once you have a basic macOS installation on the external drive, you can download whatever version of macOS you previously had installed so that you have access to the same drivers as before. Here is an Apple article with instructions to download various macOS installers:

How to download and install macOS - Apple Support


7 replies
Question marked as Top-ranking reply

Dec 1, 2023 7:25 PM in response to Zh1l

FYI, you could boot the Mac into Internet Recovery Mode using Command + Option + R to attempt to access the online macOS 11.x Big Sur to install to an external USB3 drive so you don't mess up any of the partitions on the internal drive which could prevent Windows from booting. Now you have a bootable external macOS drive where you can use Bootcamp Assistant to create a Windows USB installer & access the Apple drivers.


Keep in mind if you never installed Big Sur on this Mac before, then it will need to update the system firmware. There is a slim chance it could break something with Windows. Just wanted to put that out there so you can determine if it is worth the risk. Unfortunately older macOS online installers may no longer be available, but you can try to access them using Command + Option + Shirt + R. Once you have a basic macOS installation on the external drive, you can download whatever version of macOS you previously had installed so that you have access to the same drivers as before. Here is an Apple article with instructions to download various macOS installers:

How to download and install macOS - Apple Support


Nov 24, 2023 2:05 PM in response to Rudegar

Instead of going through the route of downloading macOs, I was able to use your previous response to find an application called Brigadier that was able to download Bootcamp and the necessary drivers for my computer. This resolved almost everything there are no unknown devices, no error code 28 and I can hear sound from my built-in speakers. However, my Bluetooth still seems to have an issue. While it is now visible in the device manager I am still not able to toggle Bluetooth on and off. I have tried installing Intel's Bluetooth driver, uninstalling and checking for changes, Bluetooth troubleshooting, checking for driver updates and there is no option for rolling back the driver. You can see the error code in the image below. What should I do next? Also thanks so much in advance.

Nov 24, 2023 10:32 AM in response to Rudegar

I looked through the links you have sent however I still had some trouble attempting to download drivers but I might have missed something. I was wondering is it possible to download Mac OS again I know some people have illegally downloaded macOS on windows PC’s but still has trouble with compatibility issues however is it possible for me to do something similar(of course without the illegal part since I have an official apple iMac and hopefully without any compatibility issues)

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Driver problems (Windows 10)

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