"Windows could not update the computer's boot configuration"

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"Windows could not update the computer's boot configuration"

Hello,

I'm trying to install Windows 8.1 to my mid-2014 rMBP. I used the Bootcamp Assistant to create the bootable USB, but when trying to install Windows I got the error above, that "windows could not update the computer's boot configuration. Installation cannot proceed." I looked it up and some people said that the partition bootcamp creates doesn't work sometimes, so I formatted everything, and tried various things such as making my own partition in Disk Utilities, or just leaving a blank space and letting the Windows installer create a partition, but no matter what I do I get this error when installing.

What can I do?

Posted on Aug 2, 2014 11:08 AM

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Answer 1

MitchPizza Author

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1 points

Aug 2, 2014 1:29 PM in response to MitchPizza

Well I managed to fix it, I'll post it here so it might help somebody in the future.

I read some posts about Bootcamp Assistant causing issues and it turns out to be correct, you just have to do everything manually and don't touch bootcamp assistant at all. I created a bootable USB using a program called Rufus (only available on Windows afaik), and downloaded the bootcamp drivers and put them on the USB myself (http://supportdownload.apple.com/download.info.apple.com/Apple_Support_Area/Appl e_Software_Updates/Mac_OS_X/downloads/03…)

Then I went into Disk Utilities and created a 120GB partition for Windows, then deleted that partition. Essentially left me with a ~380GB partition for OS X, and ~120GB of empty space, not a partition or anything.

Then boot from the USB, select this "empty space" as the partition to install Windows during the windows setup, and everything should work fine.

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Answer 2

clf139

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Aug 3, 2014 11:02 AM in response to MitchPizza

Any chance you could post screenshots of your Rufus configuration?

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Answer 3

MitchPizza Author

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Aug 3, 2014 11:55 AM in response to clf139

Sure, here you go.

For the ISO just select your Windows ISO obviously.

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Answer 4

clf139

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Aug 3, 2014 12:54 PM in response to MitchPizza

Thanks. Did you just unzip and drag the 3 folders for the bootcamp drivers into the USB after Rufus? Or did you make a separate partition for the bootcamp drivers?

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Answer 5

MitchPizza Author

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1 points

Aug 5, 2014 1:28 AM in response to clf139

Yeah I just coped the 3 folders in the main directory of the USB. Then you just run the setup.exe found in one of them once you're inside windows.

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Answer 6

Bandulho

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Sep 4, 2014 10:46 AM in response to MitchPizza

Hello! I've been trying to install Windows 8.1 for a while but always stopped at this error. I'm not too knowledgeable on this stuff so I'm a bit confused on how to do what you said.

On the link you mentioned with the bootcamp drivers should I just paste them on a clean usb pen? I already have a bootable pen I used with windows on it (from the past install that failed due to this error) so should I not use this one anymore?

Thank you for your time!

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Answer 7

Bandulho

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Sep 4, 2014 12:34 PM in response to MitchPizza

I did everything as you said, however, in the last process of the windows install "finishing up" the same error occurred again. I don't know what else to do...

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Answer 8

Oct 3, 2014 6:15 AM in response to Bandulho

I had the same problem during the "Finishing up" step. To solve this I did an PRAM reset. OS X Mavericks: Reset your computer’s PRAM

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Answer 9

bennysky

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Dec 15, 2015 5:04 AM in response to Stellan A

Thank you, Stellan! It helps. 🙂

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