Thanks for the reply again!
Yes it sounds a lot like the issue I have been having!
https://support.apple.com/en-us/HT204923
However I am running the latest version of Catalina (10.15.7) which is the highest MacOS I can run on this machine and according to the apple support website this machine is supported to run Windows 10 in bootcamp. BUT... It doesn't!!!
As for MACHALDriver.sys I can't check the version as I cannot install Bootcamp as it results in the Mac rebooting continuously and then results in a fatal error???
But according to the Bootcamp.xml...
<Component Name="MacHALDriver.sys" GUID="*" SharedDLL="No">
<File Name="MacHALDriver.sys">
<KeyPath>yes</KeyPath>
<FileVersion>6.200.6.0</FileVersion>
</File>
</Component>
FOR YOUR INFORMATION... Doing a standard install using the bootcamp assistant results in the following issues:
Issue Number 1:
- New USB 2.0 Key size (64GB)
Error 1: There is not enough space on the USB drive when creating the Windows installation USB. This is obviously wrong as the entire installation with drivers and windows is just over 8GB and the apple website states that only 16GB USB key is required.
Workaround: Manually format the USB using Disk Utility as ExFAT with Master Boot Record. Then Create the USB key by downloading the Windows Support files using bootcamp to the Mac's hard drive and then manually copy them to the USB drive. Then open the Windows 10 ISO and copy them to the same USB drive. So based on the fact I am using the latest version of Catalina I would expect this to work.
Issue Number 2:
- Can only install Windows in EFI Boot.
When attempting to install Windows normally the MacBook Pro reboots having prepared the partitions in Bootcamp Assistant and a black screen loads stating cannot find media or something similar.
Workaround:
Reboot Mac then hold down Alt to select boot disk. Only option that appears is EFI Boot or MacOS. So the only option as far as I can see it is to install Windows using EFI Boot.
Issue Number 3:
- Partition created by Bootcamp won't allow EFI Boot Install to install Windows
When you get to the point in the Windows installation where you have to choose a drive and format it you are not able to do so as you receive an error.
Workaround:
Boot back into MacOS and use Disk Utility to format the Bootcamp drive as Mac OS Extended (Journeled). Reboot hold down ALT, then choose EFI Boot and when you get to the installation step where you choose which disk/partition to install Windows on you then delete the Bootcamp partition. (Becareful to choose the correct one.) Then add a new partition using the windows installer and continue with the installation.
Issue Number 4:
- Graphics driver causes Fatal System Error and continuous reboot.
Workaround: Rename driver causing the issue in the Bootcamp/Drivers folder to .old and then reattempt the installation by removing the bootcamp installation using Bootcamp Assistant then recreating the Bootcamp partitions and reinstalling.
Issue Number 5:
- Bootcamp Installation after successful Windows 10 install causes continuous reboot
Workaround: Before doing anything create a restore point using Windows Recovery. Then manually install all missing drivers that appear in Device Manager by using the various folders from the Bootcamp/Drivers folder. Once you have internet connection again run Windows Update to update any old drivers that Windows has detected.
Issue Number 6:
- Windows is successfully installed at this point but the following items are still not working. Not able to install Bootcamp resulting in right click on trackpad Trackpad not working, No backlight on keyboard, No Audio drivers.
Workaround: NONE SO FAR...