Bootcamp install wizard stops on Mac Pro 2019 says remove external harddisk

Question

Bootcamp install wizard stops on Mac Pro 2019 says remove external harddisk

I try to install Bootcamp with the wizard.

After start up the first question the wizard asks to remove external disks.

I have internal SSD (total 4TB) with OSX Sequia on it.

Then is my question, a Sonnet PCIE card with NVME is seen as external?

I have such card in with 4TB.

And I have used the motherboard SATA for a single 2.5 inch SSD , that must be a internal HD.

Is above the right thinking or what can it be why he is not going further.

You cant use PCIE Sonnet cards with Bootcamp?

Solution is, remove install bootcamp en reinstall the sonnet PCIE NVME again?

Mac Pro

Posted on Jan 9, 2025 4:42 AM

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Answer 1

g_wolfman

Level 4

2,440 points

Jan 9, 2025 5:59 PM in response to Flying Dutchy

You can't run Boot Camp with any external drive attached. You need to both unmount and physically remove any external drives before Boot Camp will run.

Yes, PCIe devices like NVMe drives in Sonnet cards are external devices. You should remove it. If the NVMe is inserted into a slot on the Sonnet card, you could remove the NVMe. If not, remove the entire Sonnet card (I'm going to guess that removing the Sonnet card will be easier and you would probably need to do that anyway to detach the NVMe drives).

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