BootCamp fails to start after upgrade to MacOS Sierra 10.12.1

I think it's a problem of bluetooth driver.

My 2015-early new macbook had had same issue(acpi.sys error), and I tried to reinstall the boot camp partition. But the problem not solved. It failed when I installed boot camp driver(broadcom bluetooth).

So, I installed boot camp driver after deleting bluetooth driver in the setup image. It worked. but I can't use bluetooth devices.

You can try a generic BT driver on Windows.

What is a generic driver and how do I get it?

You can try the WidComm stack (https://www.broadcom.com/support/bluetooth) , which is a generic BT stack. Do not download it from anywhere else, because there are many unauthorized and suspicious variants floating around at different web sites. Create a Windows System Restore point, before you install anything on your Mac. If possible, backup OS X using Time Machine (or any other tool of your choice).

Thanks speakElvish,

Nice to know you've tested beta 3, but sad to know still not fix the problem.

Back to few weeks ago, I reported that my 2015MB12 was failed Bootcamp but my 2016MB12 was running fine. However, since last weekend, I found my 2016MB12 also has no Bluetooth which disabled. It is strange that the Bluetooth is back in these 2 days.

The Sierra 10.12.1 is buggy on both 2015 & 2016 of Macbook 12" Retina.

I'm having the same problem, and the worst thing is i can't even get my windows 10 to safe mode..

I'm having exam soon and all my notes are in Bootcamp, someone help 😟

Build a USB Installer manually using Windows ISO or Windows Media Creation Tool from Microsoft and BC Assistant drivers from Apple and boot from it to repair Windows.

i have tried, it does not give me the "Start up option", instead its something called "go back to previous build" option.

Hi erniemarh,

DO NOT try to repair your Bootcamp Windows. Best to backup your notes files at first. It is because in case the repair may crash the Windows then you may lost all the files in the worst case.

Since MacOS can read Bootcamp partition, you should load macOS as normal. Then open Bootcamp drive and go to all the folders which contain your files, backup all the files into your macOS or attach an USB flash for backup those files.

If you still can't fix your Bootcamp Windows, you still can borrow your friends' Windows or the PC in your college to continue your study.

Cheers

I had the same experience here, but mine decided to leave the loop without any apparent reason. I was not pushing any button or something. After disabling UART thing, in the safe mode, it seems to work fine.

MacBook Retina 2015

Still not found a definitive way to stop the constant loop or get into safemode to the disable the controller.

Lost for words at how badly this has been supported by Apple.

Agreed, this is pretty bad on Apple.

I have been able to get Windows 10 working just fine by skipping the Broadcom installation step when installing the bootcamp drivers. I have however run into the problem of not having any bluetooth while in Windows 10. I have not found a driver or way to install one that give me that functionality.

This is my first Mac product. So far while in Sierra I like it and the MacBook has crazy good battery life, the trackpad is the best I have ever used, and the keyboard is fine once you get used to it. But this lack of Windows support is a HUGE bummer. I mean, the W10 Anniversary edition has been out for a while several months now.....

One of the key buying reasons for me was the ability to run Windows on Bootcamp, now I am considering ditching my macbook for good, since *** Apple it does not work reliably.

Use Virtual Machine engines (VMware, Parallels, VirtualBox) till Apple works out the BC driver issues.

Bleeding edge causes a lot of blood loss. 😉.

W10 (1607) on a 2012 and 2013 Mac works well, with minor driver issues like AppleHFS/AppleMNT being broken. W10 (1511) is even better.

I've had apples for a couple of years now and Boot Camp is always been very reliable the last few years is the first major letdown I've ever seen! Apple please take note!