I'm getting the same issue of installer crashing, see Apple logo, progress bar runs 1/3 before screen goes blank, PC restarts into Windows 10.
My specs are posted in profile and I'm attaching a log which I'm assuming records what happens when booting off the El Capitan installer. I'm plugged into the USB 2.0 port, I've tried same after disabling VT_d, disabling the PCI slot (given I only have one on this mini-ITX, figure this disables Nvidia GPU and see the effect, only the other monitor fires up). Lastly, I tried booting in Safe Mode. Any of these routes, I get the same behavior of installer running 1/3 before bailing.
BTW, I had to follow convoluted instructions online to trip the switch of verbose mode, what does it mean to:
"Boot with -v to get verbose mode and then you will see the error. Post a screenshot of that![/QUOTE]"
I come from Mac OS, unfamiliar...
Many thanks for your time and helpful suggestions.