BootCamp fails to start after upgrade to MacOS Sierra 10.12.1

Nope, cant get any options for restart.

Normal boot - "Your PC Ran into a problem ACPI.sys" etc. We collecting Info for you.

Then "Preparing Automatic Repair" which also leads to ""Your PC Ran into a problem ACPI.sys" etc"

Repeat to infinite loop.

Same here using a Macbook 2016. Whilst it will boot afterwards, Bluetooth is gone. Any option is futile even using older Bootcamp drivers that previously worked. That is the insight after several Windows installation runs.

I am very much disappointed in Apple and their "Testing" team.

Tested 10.12.2 Beta 3. The problem still exists.

P.S. I have a MacBook 12 Early 2016 — Windows boots fine but I can't use bluetooth. I think the issue crashes 2015 MacBook and disable bluetooth on 2016 MacBook according to earlier replies.

If anyone could report this problem to Apple Plz do so!!!

AAminoff wrote:

So thanks a heap Apple.

I wish Apple would stop following a Wall Street Product Calendar and rigorously test stuff before putting updates/upgrades out. Can you fall back to El Capitan?

Yes and no. No because I am not prepared to spend basically a full working day doing a full reinstall, resyncing etc. I simply do not have the time for this, which ironically was one of the reasons why I again got a Macbook. I have been running Windows in VMware on my old macbook pro for years without any issues, but decided to get the 12 inch macbook because of the low weight/screen/battery life and just run Windows 10 natively. Everything was working perfectly until the Sierra update came along.

Yes, Time Machine is great, but since I rely heavily on Dropbox for syncing work files accross platforms I can not risk restoring a backup that potentially could mess things up on the other machines. I have serious trust issues after this Bootcamp problem. Will probably upgrade to macbook pro and just go back to VMware.

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.

Full agreed with you! LonerT here keeps advise this and that, but never has a solution provided. Some users in this thread and me have told that we have no time and worry about data lost, and we also have told busy & don't have time. This guy still keep advise use Time Machine then test & try & test & try rebuild Bootcamp or try VM.

This guy doesn't has risk sense and never consider our painful & technical skill (has advise different methods to test but no solid solution). I'm very sure he didn't test to reproduce our problem, at least I couldn't find any of his reply shows he has the same scenario and has worked out solution........

In this case, with more and more users' reports, it is now very sure due to the Sierra updates 10.12.1 which causes 2015MB12 can't load Bootcamp Win10 and causes 2016MB12 has Bluetooth failure problem. Why Bootcamp Windows 10 in other MB & iMac models are no problem? It is definitely due to the 10.12.1 updates made by Apple. However, this guy still advise everyone (newer reporters too) to test and to try.....

lsauerMac wrote:

you are not helping at all within this forum thread - concerning the MacBook 12".

Nothing taken personally, but knowing the history of W10 and newer Macs, this discussion is not a surprise. I have W7/W8.1 on 2012/2013 Macs which are stable and running without any issues. I do not use Sierra either.

Intel and AMD GPUs on Macs do not function very well under BC, and Broadcom is now a late comer to the same party. See Touch-bar MacBook Pro bootcamp Issues as an example.

Consumers who buy Macs without adequate diligence and testing should be forewarned that running Windows is a fringe benefit, not the main show. I am more than happy to wait for the next nVidia MBP with touch-bar.

AAminoff wrote:

Hardly bleeding edge, Bootcamp technology. It has been around for a while.

The name Bootcamp has been around, but the GPU/WiFi/Ethernet drivers are specific to each model, and have no relationship to previous versions/releases. Unless Apple sees a significant revenue dependency on this combination, it is unlikely to see any further attention from the Engineering side of Apple.

Diligence? Are you serious? Bootcamp and Win 10 were working fine for the 6 months or so I had it installed until Apple went and broke it with Sierra. It is one thing if Apple officially stops supporting Bootcamp, and another if they break working installs with crappy updates.

I did see your response which was removed. I understand the pain that this issue causes. My recommendation is to protect yourself and maintain a functional environment. There should be adequate backups and the ability to rollback and recover a system to a previously stable state based on your definition of stability. It is in your interest.

Thanks for your reply. Do you forget what I've reminded you? I'm an IT man. I can tell you more, I worked in IT field for more than 20 years and now is a Team Lead or say an Operation Manager in my company. You are no need again and again to show off what technical knowledge you know.

I also have said couple times, especially has been replied you. If this problem (bugs) is created by Apple, why I need waste my time to keep doing tests? Why not the creator to test and reproduce the problem in their lab (they should have hundreds of development machines, but we have only 1 or 2 and cannot be rebuilt always). Please don't keep actively reply us for more points. You show that higher level member here is not that helpful. THANK YOU.

Okay then.

Thanks, I'll give that a try and see if it works.

Am downloading the media and formatting a USB drive now.

When you say boot from the USB drive, will it enable me to repair my current bootcamp install ? or get into safe mode to remove the driver or disable the device?

Thanks

Rob