So recently I updated my computer to MacOS High Sierra. When I tried to boot up my Windows disk (running Windows 10) using Startup Manager, it wasn't there. I looked in my files, and I still had it. "Ok, so it's a pretty common problem. Easy fix, right?" Then I looked in Startup Disk and saw something REALLY weird. This apparently is not normally the case, but here's what it looked like.
The fact that Bootcamp showed up as a folder did kind of confuse me, and I haven't been able to find any information about it.
When I boot up into Windows, I see a "No bootable device found" error message.