BootCamp support software installer causes bluescreen at "Apple USB Virtual Host Controller"

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BootCamp support software installer causes bluescreen at "Apple USB Virtual Host Controller"

Hi,

I've recently been trying to get BootCamp to work on a external SSD following this: https://9to5mac.com/2020/07/14/install-windows-mac-external-ssd-drive-boot-camp-2020-video/

However, when i get to the very last step, which is manually installing the BootCamp drivers, Windows will bluescreen at "Apple USB Virtual Host Controller" with the following stopcode: "DRIVER_VERIFIER_DMA_VIOLATION". The BSOD will be stuck at 0% unless i force power-off the machine.

My question is:

How do i fix this?

MacBook Air 13″, macOS 10.15

Posted on Jul 5, 2021 5:49 AM

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Answer 1

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Loner T

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59,536 points

Jul 5, 2021 6:02 AM in response to Kai2343

Installing Windows on an external disk is not officially supported. If you really must have it on an external disk,

either install Windows on the internal disk first, and then clone it, or,
use Win2USB.

The BSoD is because your external disk is connected using the controller and driver that you are trying to install. Under normal circumstances, with the internal disk, the connection to the boot disk is not a USB.

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Answer 2

Loner T

Level 9

59,536 points

Jul 5, 2021 12:44 PM in response to Kai2343

Instead of the external disk, can you install W10 on the internal disk, and then use Win2USB to clone it? The Bootcamp driver installer does not work properly if installing on the external disk.

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Answer 3

Loner T

Level 9

59,536 points

Jul 6, 2021 6:38 AM in response to Kai2343

I typically install W10 on the internal drive, and then use Winclone to clone it. Once it is fully functional, I remove the internal disk installation. Be aware that Winclone requires a commercial license.

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Answer 4

Loner T

Level 9

59,536 points

Jul 9, 2021 1:31 PM in response to Kai2343

Kai2343 wrote:

The problem i'm having is that CloneZilla's guide sends me to another program.

However, that program does not see 1. The Internal Bootcamp partition and 2. It does not see the correct partition of the external drive.

If the CloneZilla Live USB does not have the appropriate drivers, you may not be able to see the internal disk. What is the year/model of your Mac (do not post the serial number)?

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Answer 5

Kai2343 Author

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Jul 5, 2021 11:01 PM in response to Loner T

I'll try running the bootcamp installer within the VM (from the guide in the post), and then copying it over with Win2USB.

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Answer 6

Loner T

Level 9

59,536 points

Jul 6, 2021 4:37 AM in response to Kai2343

After Windows boots, check for any unknown devices. If you install drivers the DriverStore should have a copy of the driver when needed.

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Answer 7

Kai2343 Author

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Jul 6, 2021 6:59 AM in response to Loner T

Alright.. So basically, i have to run the Bootcamp installer, so Windows IS installed on my main drive, then use winclone to migrate it and then remove the partition?

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Answer 8

Loner T

Level 9

59,536 points

Jul 6, 2021 8:43 AM in response to Kai2343

After you clone it, ensure that it works properly, before you remove the internal installation.

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Answer 9

Kai2343 Author

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Jul 6, 2021 4:33 AM in response to Kai2343

For the record, these were my steps i tried when installing it, leading to the post:

Virtual machine on internal disk, drag bootcamp support folder and Win2USB in
Connect drive and connect win10 iso file with CD/DVD
Install Win2USB using CD/DVD option
GPT for UEFI,
Installs...
Turn VM off.
Enter macOS recovery to change startup options
Boot into Windows from macOS recovery
Use external mouse to complete setup
Install Bootcamp Drivers (fails)

I'll try installing the Bootcamp Drivers before Win2USB..

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Answer 10

Kai2343 Author

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14 points

Jul 6, 2021 7:44 AM in response to Loner T

Well, is there really no alternative? Can i remove the driver file perhaps?

I really don't want to install bootcamp on my main drive because.. well. The whole point is the storage problem.

Anyways, if there really isn't a alternative.. Thank you for your time helping me..

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Answer 11

Kai2343 Author

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14 points

Jul 8, 2021 9:25 AM in response to Loner T

Hi, thanks for the suggestion.

I've installed CloneZilla, however after unzipping it, i see just files and no apps/programs i can run.

I'll try installing it on Windows instead of macOS, or am i supposed to do something else?

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Answer 12

Kai2343 Author

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Jul 9, 2021 12:38 AM in response to Loner T

Alright, so this is what i do: (https://clonezilla.org/liveusb.php)

I do this from Windows
I already have a partition (250gb to Time Machine, 250gb to the Bootcamp partition, formatted ExFAT, so the one i have to boot from)
I put the contents of the zip file in the drive (partition)
On the USB drive, i create a shortcut to the makeboot.bat file
I make it run as administrator.
I then run the shortcut makeboot.bat?
I then follow onscreen instructions.

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Answer 13

Kai2343 Author

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14 points

Jul 9, 2021 12:54 AM in response to Kai2343

Alright, a small problem: The program CloneZilla (https://clonezilla.org/liveusb.php#macos-method-a) recommends using, does not see the BOOTCAMP partition on my external drive (the one i erased to install bootcamp on)

It only sees the drive itself and the time machine partition. It is formatted ExFAT, the disk is: disk2s2.

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Answer 14

Kai2343 Author

Level 1

14 points

Jul 9, 2021 4:30 AM in response to Kai2343

I'm annoyed that nothing has worked so far.

Would any of the solutions below work?

Just copy and paste the root of windows to the external ssd
Install all apps on another disk, and set disk folders to default or something like that

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Answer 15

Loner T

Level 9

59,536 points

Jul 9, 2021 7:07 AM in response to Kai2343

If you do not want to tackle CloneZilla, one other option to consider is to have a small Windows-only installation on your internal disk, and then use the external disk as D: containing all your applications. Is this something you want to consider?

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BootCamp support software installer causes bluescreen at "Apple USB Virtual Host Controller"

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