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Boot Camp "The computer restarted unexpectedly or encountered an unexpected error" Loop

Hello. I'm not sure if this question has already been answered, but my MacBook Air is stuck in a windows installation loop, saying,

"The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed. To install Windows, click "OK" to restart the computer, and then restart the installation".

This, of course, leads to an endless loop.

The Shift+F10 trick seems to only work for Windows computers (I could be totally wrong), but that's the only solution the internet provides. I really need some help. Thanks in advance!

MacBook Air

Posted on Dec 10, 2017 9:27 PM

Reply
42 replies

Feb 19, 2018 7:49 AM in response to Loner T

Thank you for your assistance it however still isn't working!


I have:

-Removed the BC partition with the BCA.

-Reset SMC and NVRAM

-Downloaded the 1607 iso again onto another new 2.0 USB drive


...works brilliantly up until "Getting started" following by the "Computer restarted unexpectedly" message.


Windows 7 and 8.1 work quite well but essentially run into the same problems when upgrading...

Feb 19, 2018 9:32 AM in response to iSimon88

iSimon88 wrote:


Thank you for your assistance it however still isn't working!


I have:

-Removed the BC partition with the BCA.

-Reset SMC and NVRAM

-Downloaded the 1607 iso again onto another new 2.0 USB drive


...works brilliantly up until "Getting started" following by the "Computer restarted unexpectedly" message.


Windows 7 and 8.1 work quite well but essentially run into the same problems when upgrading...

The ISO should be on your Mac's internal disk in Document or Desktop (but not Downloads), and BCA should build the USB2 installer. If you use a Windows Media Creation Tool USB, it does not have the necessary BC drivers to allow reboot environment to support proper functionality of Apple-specific hardware.

Feb 20, 2018 4:09 AM in response to Loner T

I am running High Sierra.


No external devices other than the power supply have been plugged into the device during the process, my bluetooth mouse is switched off.


I will follow your steps once again and see what happens.


Should I unplug the USB drive when it counts down to restart following the main installation process?


The only thing that has changed on my device is that I have upgraded my SSD drive - do I need to update any settings or drivers? I ran Sierra and Windows 7 on my old drive.


The new 256gb SSD drive is from another macbook and replaces the 128gb drive I had before.

Boot Camp "The computer restarted unexpectedly or encountered an unexpected error" Loop

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