I'm not sure whether this should go in the OS or hardware section... Sorry if it's in the wrong location.
I only recently got my AC working again in my PC room. Not quick enough, it seems... With the heat wave hitting Michigan hard, I managed to overheat my PC enough that it had to be shut down. What bothers me, is that, for whatever reason, I have to go to the boot menu, and tell it to boot from the C drive, or it won't recognize having one... Any notion of what went fubar on me, and how to fix it so it'll load to the C drive every time again?