Level 1

16 points

Boot Camp: Unknown device in device manager

Hi everyone,

I recently upgraded to Mojave and run the installation for Boot Camp for Win10 and found an unknown device in device manager as the picture below:

The device is on Pci Bus and has (Code 28)

The device detail: ACPI\INT34BA\3&11583659&0 as following picture:

I tried reinstall Boot Camp setup for Windows couple times and got the same result.

Please help if anyone has solution for this. Appreciate it and thanks very much

MacBook Pro (15-inch, 2018), macOS Mojave (10.14), Second OS: Windows 10 build 1803

Posted on Sep 25, 2018 9:56 AM

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57 replies

Level 9

59,536 points

Sep 28, 2018 9:33 AM in response to wt7396

If you run a SMC Reset and then re-scan for changes, does this device still show up?

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Level 1

16 points

Sep 28, 2018 9:38 AM in response to Loner T

Hi Loner,

I just did as you said to reset SMC and Re-scan for changes and the unknown device problem is still there.

thanks

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Level 9

59,536 points

Sep 28, 2018 7:23 PM in response to wt7396

Can you run Apple Software Update and check?

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Level 9

59,536 points

Sep 29, 2018 7:59 AM in response to wt7396

No, if you do not need iCloud, there is no need for this update. iCloud update does not provide any drivers.

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Oct 2, 2018 12:09 AM in response to Loner T

Same unknown device problem on mine and my college's MBP 15 Touchbar 2018

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Level 9

59,536 points

Oct 2, 2018 4:21 AM in response to IcarusBlack

I need to check a 2018 and see if the T2 causes this issue.

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Level 9

59,536 points

Oct 6, 2018 1:13 PM in response to Dubayy2020

Dubayy2020 wrote:

They state their engineers are working on it and that bootcamp is NOT ready for the 2018 macbooks.

Good to know. Is there a Bug Tracker for this issue?

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Oct 6, 2018 10:33 PM in response to YN2B

Bridge OS is for MacOS to iOS and nothing at all to do with Microsoft Windows.

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Nov 20, 2018 11:07 AM in response to wt7396

I have a similar issue.

What can I do?

Unkown device under other devices.

Location: on PCI Express Root Complex

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Level 9

59,536 points

Nov 20, 2018 5:56 PM in response to sjackfromtilburg

If the unknown device is not interfering with normal functionality of Bootcamp, you can safely ignore it.

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Dec 23, 2018 1:26 PM in response to Citizenzoltan

I second this, due to the concern that the logic board may warp.

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Level 1

12 points

Jan 1, 2019 4:52 PM in response to wt7396

Running Windows, not in a VM, for gaming and a number of other Windows-Only apps was a big part of my decision to upgrade from a 12" Macbook to a 2018 15" Macbook Pro. What a horrible mistake.

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Boot Camp: Unknown device in device manager

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