Later I go to turn on the laptop, and it wont start Windows. It goes past the "COMPAQ" load screen, then to a black screen that reads "Windows Error Recovery. Windows failed to start. A recent hardware or software change might be the cause."
It also says to insert the Windows install disc and choose "fix". However, I do not have the install disc, as Vista came installed on the laptop when I purchased it. The only other options it gives it to hit ENTER or ESC, which both restarts the computer, back to the COMPAQ screen and back to the error screen.