Check thoroughly before you reinstall!

It's funny what can happen sometimes. Out of nowhere several days ago I started getting a strange graphic anomaly - no planes shown in the aircraft selection menu, or in the hanger when you go to options. Real weird as I never added or changed anything, plus a regular CTD was happening about 75% through the Fly loading screen, in Normal and Safe modes. It appeared I could not access my M.2 980pro either (community folder) and it was throwing an error at me. Nothing made sense. Had me super scared I was off down the MSFS reinstall route. Had already updated the Nvidia drivers, I was already googling the reinstall procedure. 

So in a final attempt at something, I unplugged the case, vacuumed it out and re-seated all the connections, plugged all USB's back in and it all came good like nothing had ever happened. The moral? Before re-installing, don't rule out something crazy with your connections. I think my cleaners had come in the other day and maybe aggressively dusted the back of the PC and semi-dislodged a USB connection which was enough to throw the entire system out of whack. Really bizarre, it looked like the whole thing was going down.