Bootcamp ACPI_Bios_Error Windows 10 installation

• Backup your macOS installation via Time Machine.
• Erase your 'whole' internal disk.
• Install a new copy of macOS Catalina or Mojave. Mojave is preferred.
• Install Windows, without any external storage connected.
• Test Windows.
• If Windows is functional, restore your files from TM backup (not a full restore).

• W7 will not work on a 2016 Mac.
• W8.1 may work, but you will run into driver issues.
• W10 should work.

At this point, if you get ACPI errors, I suggest running hardware diagnostics and taking it to the nearest Apple Store or AASP.

If the Windows device drivers sent 'bad' commands to the underlying SSD, when losing power, the steps we have tried are not helping diagnose the issue.

Can you post the output of

diskutil apfs resizeContainer disk0s2 limits

Here is an example...

diskutil apfs resizeContainer disk0s2 limits 
Resize limits for APFS Physical Store partition disk0s2:
  Current Physical Store partition size on map:   1.0 TB (1005000302592 Bytes)
  Minimum (constrained by file/snapshot usage):   371.6 GB (371581779968 Bytes)
  Recommended minimum (if used with macOS):       382.3 GB (382319198208 Bytes)
  Maximum (constrained by partition map space):   1.0 TB (1005000302592 Bytes)

This looks fine.

• Can you check About This Mac -> System Report -> Power and look at Battery Health?
• Can you run a detailed test using How to use Apple Diagnostics on your Mac - Apple Support?

Also, check if any programs in Exchange + Repair Extension Programs - Apple Support apply to your specific model.

You have a couple of missing parts, but as long as you can see them, you do not need to post them. Here is an example.

Battery Information:

  Model Information:
  Serial Number:	F8Y90830JXQJ7PYAQ
  Manufacturer:	SWD
  Device Name:	bq20z451
  Pack Lot Code:	0
  PCB Lot Code:	0
  Firmware Version:	901
  Hardware Revision:	2
  Cell Revision:	1876
  Charge Information:
  Charge Remaining (mAh):	4686
  Fully Charged:	No
  Charging:	No
  Full Charge Capacity (mAh):	5045
  Health Information:
  Cycle Count:	30
  Condition:	Normal
  Battery Installed:	Yes
  Amperage (mA):	-674
  Voltage (mV):	12509

You may want to download Coconut Battery and check the charge retention. If it is below 80%, the battery may be an issue.

kenobi9 wrote:

One more question.

MaxOS boots normally, any windows attempt fails because the ACPI error.

I read on many forums (windows based) you can disable acpi in the BIOS.

Now macbook/macOS doesn't have a BIOS it used stuff from the EFI partition yes?

On a 2016 Mac, there is no BIOS emulation (CSM-BIOS) and there is no user interface to manipulate the emulated BIOS.

What if I delete the EFI volume / partition?

You can. On first page, when I had suggested erasing the 'whole' disk, which would also delete the EFI partition. Re-installing macOS will recreate the EFI partition.

If you mount the EFI partition, do you have a Microsoft directory in the EFI partition?

Good. I recommend visiting the nearest Apple store. The Apple Geniuses should have better tools to diagnose the issues.

kenobi9 wrote:

Hm are you sure we're looking in the right direction here?

Yes. All indications point to power issues. See https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/acpi-driver for reference. Does it make any difference if you connect the power adapter and try to install Windows?

I am thinking it could be Bootcamp no correctly supporting win10 in some way atm?

If Bootcamp installer comes up, then BC is not the issue.

I just wonder why not even when I EFI boot from an external USB stick I can not even get into

Windows recovery etc. It is always immediately ACPI_BIOS_ERROR.

There is an issue with Power-related devices on your Mac.

kenobi9 wrote:

"If Bootcamp installer comes up, then BC is not the issue."

Not sure it comes up but never completes - I mean I don't know what the thing does - on first reboot, its ACPI BIOS ERROR. Then it leaves the Bootcamp partition there but empty.

Do you see the partition selection screen?

Could it be that the switch from HFS+ APFS in newer macbooks could cause this?

If you are able to partition the disk via BCA, then HFS+ vs APFS is not a factor?

Hm I tried installations mostly with the Macbook being plugged in power supply - sometimes without (on battery) - in both cases it is again ACPI BIOS Error showing up.

Interesting. This is a bit of work, but instead of Windows, are you able to install Ubuntu and verify that it works properly?

kenobi9 wrote:

No there is a popup where macOS ask me to authorise changes to the computer. I enter my password then the machine restarts. the next thing I see is the Windows icon. Then boom bluescreen ACPI BIOS ERROR.

When I turn the macbook off and plug a windows USB boot stick in on power up, after I select EFI boot, same thing Windows icon for a while then boom ACPI BIOS ERROR and automatic restart.

None of the ACPI extensions that you see on the Apple side are in use when this error happens. Seeing the Windows icon implies that the Windows Kernel is running, not macOS.

Also, on a 2016 MBP, using a USB to install W10 is not recommended.

Can you fall back to Mojave and use W10 1809v2 and test?

Your battery seems to be a borderline case. On a 2018 rMBP, this is what I get...

If you try to install W10, without any external storage attached, after a SMC and NVRAM Reset, do you still get an ACPI error?