I have a laptop that is always on out in my garage for work. Plugged too many things in and the breaker triggered, causing everything out there to immediately turn off. Everything works fine but the laptop, which boots for a while fine, but then suddenly shows a black screen with just the cursor on it. Tried rebooting multiple times. Tried launching in safe mode, and ran the troubleshooter. Nothing returned, but the only thing I could tell is that when loading the files it stops on CLASSPNP.SYS under drivers. Any advice?