Pulling my hair out, cannot get the windows installer to start after bootcamp creates a partition and restarts, sm installing Windows 8.1 from a sub drive on el cap
iMac (Retina 5K, 27-inch, Late 2015), OS X El Capitan (10.11.1)
Assuming "sub" is intended to be a USB, is your USB a USB2 flash drive or some other kind of USB? Do you have any external storage connected other than the USB?
Yes forgive my autocorrect. It's quite possibly a USB2 Cruzr Blade, I have an external drive but it's very old so wouldn't think it would be USB3. I don't have a superdrive unfortunately.
Your 2015 iMac will create a USB installer (if necessary) on a USB2 flash drive using a Windows ISO. Do you see an OSXRESERVED partition during your installation attempts?
You may looked at this already but please see How to install Windows using Boot Camp - Apple Support .
At what stage does the problem occur? Black screen when Windows boots up, BCA cannot create USB, etc... ?
Doesn't even get that far, also doesn't seem to install the windows support software. It has created the bootcamp partition which has nothing on it, when it re-started it had a prohibited symbol and wouldn't do anything. Tried restarting and pressing option but it does give me any options other than macintosh hd. Am going to try a difference USB
Windows installer won't start after bootcamp creates partitio
