BootCamp Assistant Not Working on New 2019 MacBook Pro 16 Inch

speakElvish wrote:

The drive only works on my 13inch macbook pro on condition that a windows partition is created by bootcamp. If I create the partition using disk utilities, The issue persists.

The USB installer should be created by Windows MCT. The designated partition should not be an APFS volume. You can create it as FAT32 or exFAT partition.

I think this might be some issue related to partitions not being able to be read by the Windows installer driver?

If the installer is unable to see the internal disk, it will not be able to read any partition information either.

I spent about 4h trying to bypass this by manually making a USB installer drive, disabling boot protection, etc, and downloading the 2018 MBP drivers - Windows 10 couldn't see the SSD, so I loaded the WinPE drivers from a USB stick for the old SSD, and it saw it ... but wouldn't install on it. When I tried to reformat using Win10 installer, it did something, refused to install, and really screwed up the partition table to the point where Disk Utility wouldn't let me remove the partitions it created. Definitely suggest waiting for Apple to button this up...

I just talked to Apple Support via chat, and this is what I was told:

Thanks for waiting. I did some checking, and it looks like we’ve had a few other reports of this with this model, and it’s something we’ll be checking into. Currently, the recommendations are to continue trying this periodically to see if the behavior changes. If it does continue for an extended period of time, I would suggest we reconnect and check for any updates to the suggestions by our software engineers.

I guess we'll just have to wait

I just attempted this with the 1909 iso and upon reboot received ‘unable to verify startup disk’

Ill try again with another iso but it does require you re-download the support software, wipe out the partition, and start over.

I think with newer MacBook Pros, any with the new T2 chip, you have to change the trusted boot settings in order to use Boot Camp and boot from USB. I had to even do this on my 2019 15" model, FWIW....

https://support.apple.com/en-us/HT208198

EDIT: Looks like this was just a driver issue based on other replies. Probably disregard my suggestion, then!

I got the same issue. I suppose some drivers, most likely AMD's RDNA (Navi) graphic driver for Windows isn't ready yet.

stevenplotkin wrote:

What is the timeline for proper support?.

You need to ask Apple Technical Support, not Apple Support Communities.

The new 16" MBP just came out. The first shipments were estimated to arrive tomorrow and Wednesday. Maybe Apple wasn't expecting the shipments to arrive so early, so let's wait a couple of days...

@iRuney did you have to disable secure boot from recovery? I’m installing 1909 after disabling that but it seemed like an odd undocumented step.

Had a copy laying around from a prior boot camp install on the previous generation MBP.

Just want to post that this is an issue for us on multiple new MacBook Pro 16 as well. Boot camp is an integral part of our organization’s workflow and this is really bad support on Apple’s part.

This stuff should work out of the box on day one.

Very frustrating!

Is there any other possible ways to install windows without bootcamp? For example using the drivers downloaded for macbook 15 inch?

I tried creating a windows boot drive. But on the step where it wants me to choose a disk to install windows on it says "couldn't find any disks."

Is there a way to solve this so I can get windows installed asap?

 Free: 883.58 GB (883,583,258,624 bytes)

  Capacity: 1 TB (1,000,240,963,584 bytes)

  Mount Point: /

  File System: APFS

  Writable: No

  Ignore Ownership: No

  BSD Name: disk1s1

  Volume UUID: 2B1A9693-CD81-4BD5-AF9F-BCE42C820AFD

  Physical Drive:

  Device Name: APPLE SSD AP1024N

  Media Name: AppleAPFSMedia

  Medium Type: SSD

  Protocol: PCI-Express

  Internal: Yes

  Partition Map Type: Unknown

  S.M.A.R.T. Status: Verified