My Inspiron is running very slow. I ran the ePSA, which came back with an error 2000-0146. Checking out this error code stated that I should reset the BIOS to the defaults. When I researched how to do that, Article 618224 listed a series of steps including pressing the key. There is no scroll lock key on my keyboard, and hooking up a USB keyboard, I was unable to initiate a scroll lock. How do I reset the BIOS to defaults on my Inspiron 1750?