MacOS – Install windows 10 on bootcamp fails

I ran into this problem this afternoon. Your Mac's model must be in Boot Camp Assistant's list of supported models for the "Create a Windows 7 install disk" option to be available, so you must find out if your model is there and add it if it's not.

1. Go to Applications > Utilities and right-click on the Boot Camp Assistant app; select Show Package Contents, and open the Contents folder where you should see a file called info.plist.

   **By default you don't have permission to edit info.plist. My preferred way around this is to copy it to my desktop (opt-drag and drop), then rename the original to info_OLD.plist (not necessary to rename it, but if you screw up, at least you'll have the original backed up). Authentification will be required... just enter your password when asked.

2. Open the info.plist file on the desktop with Property List Editor (right-click, Open with > Property List Editor).

3. At the botton of the window is a list called USBBootSupportedModels. Click on the list and then click the Add Child button on the tool bar. Apparently your model must be the first or last item in the list – this didn't work for me when I accidentally added it to the middle, but it did when it was at the top. If you don't know your model number, click on the Apple menu and click About This Mac, where you should find the information. In Lion I believe you have to click "System Report" to get the proper information. My model was MacBook2,1 so the item I added to the top of the list was MB21.

4. Save the file when you're done. Now drag it back to the folder where the original file is (replacing the older file if you chose not to rename it).

When you open Boot Camp Assistant now it should give you the option to create an install disk.

**I haven't completed anything beyond actually getting the option available, so I can't comment on if the install disk will actually be created properly.

This is how to fix the bootcamp windows install error:

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

Do not try to fix with a workaround - you'll find solutions of people manually selecting their Windows partition during reboot by holding down the OPTION key. This will work, but you are circumventing the way that apple wanted you to install it (via EFI).

The solution to this error is simple: it's a PRAM problem. I've seen a lot of different ways of people claiming to fix this problem. I've experienced it multiple times on my Haswell 15" retina Macbook Pro, but it seems to be affecting a lot of the other Haswells as well.

Here are the steps:

1. Create a USB install like normal using Boot Camp Assistant (include the Apple support software)
2. Partition your drive for OSX and the new BOOTCAMP partition
3. Let it automatically reboot, follow the normal procedures to format the new BOOTCAMP partition, and get to the "finishing" step during the Windows installation. You will get the error
4. At this point, when you press OK it will automatically restart after 10+ seconds. When that happens, quickly hold ALT+COMMAND+P+R. You will see your screen flicker and you will hear the bootup sound twice, which means you reset the PRAM successfully
5. Your OSX install should now boot instead of the failed Windows install
6. Open Boot Camp Assistant again. Remove the Window partition that was created and restore OSX back to the partition size it had at the beginning of these steps
7. Go through the Boot Camp Assistant once more to create the BOOTCAMP partition. You do NOT have to recreate the USB, so just uncheck and skip those steps
8. Let it automatically reboot and follow the same Windows installation steps as before. You should not get the error the second time.

I found that this is the only thing that consistently works for me. I've installed Windows 8 and 8.1 on Mavericks 10.9.2 Haswell Macbook a bunch of times, so I'm pretty sure of it. This will result in you installing it as Apple meant it to be installed.