I experienced something like that with my webcam.
I would plug it in, my laptop would crash, a blue screen would pop on saying that my hard-drive could not be located, etcetc. A ton of problems. I restarted my computer. All was well.
It happened several times. I was relentless and kept doing it till it worked. My laptop must have "crashed" fifty times while trying to get it to work.
To find out - My Firewall expired and was going haywire. It even attacked my internet and blocked Internet (and then Firefox) from working. Long story short, I disabled the firewall and everything worked fine. Then, I renewed the firewall and all was well.
Play around with your firewall settings, perhaps?