If you cannot boot into Windows but pc can POST, you may try get a spare hdd to install in R12 and install Win 10 on it. Then try to boot the R12 from that hdd and access files you need from ssd. Afterwards you may wipe ssd to do a clean install. 
I have had my Aurora R12 for a while. When I went to microsoft store to update some an app. When it wouldnt connect to the internet. I opened killer networking then changed svchost.exe to pinned and number 1 priority. Still didn't work. So then I restarted my PC. It bsod on boot and error: page-fault-in-nonpaged-area. Ram issue or storage I found out. Removed ram sticks 16gb hyper x fury that came with the pc. Changed positions and everything. Then instead of booting I now have 4 orange or amber flashes and no post. The rgb turns on but then flashes then bootloops. I don't know what to do. Please help.
Aurora R12, no post, fans spin