I'm working on a coworker's computer when suddenly Windows completely died... but not exactly? Rather than giving me a BSOD, I was stuck on the desktop of a computer that seemed like it had its hard drive ripped out but somehow managed to still function. All of my desktop icons disappeared, I couldn't open the Recycling bin or even execute the run command, and attempting to do an sfc scan give me an error saying that sfc was not "recognized as an internal or external command...", despite the fact that I had been able to run the command before this happened. I've never seen anything like this before, but I assume the hard drive is failing. If anyone knows what this is, please let me know as I am genuinely curious as to what is happening.