Windows 10 could not update the computer's boot configuration

You can try the whole process again with a USB 2.0 8gb stick.

Please run Disk Utility Repair on the whole disk, boot into Safe Mode, then boot normally, and try your installation. The EFI partition write is failing where BCD will get stored.

Hi Marcos, try resetting RVRAM (How to Reset NVRAM on your Mac - Apple Support). It worked for me.

I meant NVRAM. Sorry for typo!

hi, there! I encountered the same issue as MARCOS and I did a PRAM reset - command+option+R+P but then I get the same error as in the first place with GPT/MBR partition thing which is solved with gdisk command - sudo gdisk/dev/disk0 p x n w q. So, there is no way for me to get around. Any other suggestions?!

What year/model is your Mac?

hello, Loner T...my Macbook Pro is late 2011, i7 2,2Ghz, HDD 512Gb, 8Gb RAM and runs on El Capitan now. I have used a USB 2.0 for BOOTCAMP but nothing seems to work. I have partitioned the HDD in Recovery Mode, I have made 100Gb free space for the Windows using FAT32, ExFAT with DiskUtility. I tried even to install Windows first, making the whole HDD clean with diskpart command and having a MBR partition table instead of GPT but then I couldn't install OSX on MBR. I can't figure out what am I doing wrong knowing that someone else have done it before.

Your 2011 Mac does not officially support W10 as shown in this link - Use Windows 10 on your Mac with Boot Camp - Apple Support . Also, your Mac does not support USB-based installation. You need to use the built-in Optical drive and a physical DVD.

yes, you're right but I've tried also with windows 8 and windows 8.1....and I got the same error. I didn't know about USB based installation, but I doubt this could be the issue since others got the same error on newer macs. Thanks for telling me, anyway! Much appreciation!😉

...soon I'll have the Windows on DVD I will post it here how did it go!

Hello, again!

I just wanna give some brief story to anyone who may concern about what I did lately regarding this topic here.

I have encountered some issues that are very hard for me to explain not being a developer or a programmer or a hacker whatsoever but might give a clue to somebody's else understanding.

I finally manage to install Windows 10 on my MacBook Pro even though it is not officially intended to work and there is some true in it since I couldn't make work all the drivers needed. But what I did is as it follows...

I had clean all my HDD and I installed freshly through the internet boot option the OS X that was made for my MacBook Pro late 2011, which is Mavericks. Having this done in order to install Windows as well I used TUXERA for partitioning the hard drive and making one partition with NTFS, I used rEFIt for having the boot option and in advance of course I made a bootable USB for Windows 8.1. Everything went well. I finally succeeded having one partition of 100Gb for Windows and one partition of 400Gb for OS X on a 500Gb Toshiba HDD. But check this out to see what happened later. I forgot to mention that on Windows 8.1 all the drivers for the Mac worked great until I have updated to Windows 10. And this can be understood if the Apple company says that my Mac is not intended to work on Windows 10.

Anyway, after this I also updated my OS X, first to Yosemite and then to El Capitan. And with that all the problems came back like from where I struggled in the first place. Accepting that I can't work with Windows 10 having this issues: NO control panel for BootCamp / NO FN keys working and the scariest of all was Processor Fan's getting very NOISY and slowing down the system, so accepting this I decided to downgrade to Windows 8.1 where everything was just fine. But now, having El Capitan which I am very pleased with it as a new OS for Mac I can't manage to do this downgrade for Windows. It become so frustrating. I can only start all over again to make it right and I've worked so hard to put all my software I needed on both platforms. If I am trying to install a fresh new copy of Windows under Windows I get a very vague error message like The Instalation Procces Cannot Continue. If I'm trying to install it from a bootable USB I get the same error with MBR partition table, even though it is GPT made with TUXERA and formatted NTFS and even though I am using ReFind now for booting. Why El Capitan does this?! I hope I will not be misunderstood. I know very well what I did with every step I took. And I didn't forget about gdisk and csrutil disable or PRAM reset. But it just don't work and no one seem to come with a solution to tackle this. I don't know but I got the feeling that those guys who introduced this feature called SIP for El Capitan have the answers but who will give it to us....the stupid users?!

Wish you all the best!

Hello Muschetar,

Could you please post the steps that you had made to install windows 8.1 on your 2011 MAC ?

I was doing the same things you had done except that I still face the bcd error for boot configuration for Windows 8.1 and Windows 10.

Thanks!

What is the issue with W8.1 on a 2011 Mac? If you are getting a BCD error, you will need to repair the whole disk before you partition the disk. You cannot use a USB Installer on a 2011 Mac, if you want a working installation.