Q: A solution that works for Windows 8.1 on MBP Late 2013

Yep... Else, I might have to redownload it. Shudder to think of it. Internet speeds where I am - pathetic. x(

Getting an unexpected error at 88% this time (Getting files ready for installation) - Error code: 0xC0000005 "Windows installation encountered an unexpected error. Verify that the installation sources are accesible, and restart the installation."

?!?

Hmm, sounds like something's not in the iso, or not readable, maybe. Doesn't look good for that iso.

Sigh... That error comes at different levels of task completion. 60%, 40% or even 70%.

That's it. I'll call it a night. 3AM here.

Thanks for the help, mate - will regather my thoughts and start over.

Same problem here.

Error code: 0xC0000005 at 89% of the installation process. Ive tried the Philpop solution and also the regular way to install windows with bootcamp. Both finished with the same result.

I don't have a MBP though. I'm on an iMac14.2.

Any other hypothesis?

Thanks

Frustrating error, did you download that ISO from Microsoft as well?

I am wondering if it has anything to do with BootCamp or OS X 10.9.1

i had this issue yesterday and the way around it is to erase the files from the USB stick that has stalled in copying your ISO.  Then what you do is manually take the files from the ISO and copy them over to the stick, manually.

If you don't know how to do that, the simplest way is to go back to the MS link for the Windows download and this time, select downloading it to a bootable USB.

This will unpack the ISO files for you.

When that is done, just copy all of those files from the USB stick to your previously used USB stick (which has been cleared of all files).  The reason you use that stick is because your Apple software has already formatted it properly, so now it's only a matter of copying the windows files to it.

Warning: It takes a LONG time to copy these files and it seems like nothing is happening, but you have to give it about 1/2 hour.

After you complete copying, go get the updated software/drivers and install to the same stick.

Once you do that, continue the Bootcamp installation and your machine will reboot from that USB and start installing Windows.

NOTE: When you are in the process of installing Windows, you may lose the functionality of your Apple MOUSE.  You will have to use the keyboard to TAB around the screen and hit SPACE (to select) and Enter (to execute).  It's a little painful but you'll get through it.

When Windows fired up for me, I had no mouse function, so I simply grabbed a USB MS Mouse and it worked immediately. I was then able to click around Windows without a problem.

The only other issue I had was that Bootcamp was nowhere to be found in my Windows installation, so I clicked over to the DESKTOP icon, Clicked on FILE EXPLORE, found my  USB stick and clicked on the BOOTCAMP install and VOILA....all of the drivers installed automatically!!

If that doesn't work for you, you can always click on each driver inside the folders of your Bootcamp folder on your USB stick and they'll install manually one by one as  you click on them.

When that's done you are in busienss,

I am a PC user....never use Apple products....set this up in about an hour.

READ THE BOOTCAMP MANUAL.

Print it out and keep it in front of you as you step through the process.

It does help.

Good luck!

Tried again - Redownloaded the ISO. Normal installation via Boot Camp, nothing fancy. Running flawlessly.

Hello unfortunately this still doesnt work for me. After having formatted the BOOTCAMP partitions in the windows installation, the error message appears and i am not allowed to click next.

Please help! I have a original cd of windows 8.1 64 bytes and i use boot efi to launch the install

Thank you in advance

≈ I was also facing same problem, it finally i got it resolved by hit and trial. Try this out-

1. Normally create a usb bootable device using boot camp with apple drivers for windows.

2.Open the windows.iso by mounting it.

3. Copy and replace all the contents of the iso to the usb cretaed by bootcamp.

NOTE- Don't delete only content from the bootable usb drive or format it.

ENJOY !!!!

Hi, yes a finally succeed in installing windows. You are right, even if you own the original cd, you have to create a bootable iso and launch the install process by the usb device.

Thanks

I kept running into the error at 89% with the code 0xC0000005 on my Macbook Air. None of the solutions above were working for me, no matter how many times I deleted the partition and restarted the Bootcamp Assistant process. What ended up working for me was this.

1. Once you get the error at 89% with the code, 0xC0000005, turn off/restart your computer

2. Hold down the Option key. When the various bootup drives start up, selecting the Windows 8 boot file. (There may be two, so you may have to experiment. I think the one I used was boot.epi or something like that)

3. You'll enter the setup screen once again, and you'll see your Bootcamp Partition

4. Do not format the bootcamp partition. You'll notice that around 10GB will be missing from available capacity. This is because of the previous failed Windows Installation. Re-install windows on this partition. You'll receive a message about how there was already a windows installation, so this data will be moved to a Windows.old folder.

5. As the setup progresses, you should be able to install everything this time around.

Thanks so much!! I was looking everywhere for a solution. IT FINALLY WORKED!!

Thank you so much!!!!!. You did help me :-)

Hi Philpop, may I ask you why did you format bootcamp as exFAT rather than NTFS?

Althought exFAT can be read write by both OSX and Windows, but I thought it was designed for USB flash drives and SD cards and not for installing Windows as it lacks many security and reliability features.