Ok, I opened up a .flv file and immediately had my computer reboot. I decided to go to system recovery options and disable my computer from restarting automatically to read what info the stop error gave me if it happened again. I opened a .flv file in media player classic again and went to audio options again and messed with the settings. After hitting "apply", my computer restarted and I got the stop error info. It mentioned something about portcls.sys. From what I know, this is related to audio/video programs in some way, which makes sense since I was using media player classic. I'm not sure if it's the program itself that is causing the problem with the driver or a codec installed with k-lite. I'm going to install the standard edition of the current version, if that doesn't work, I'll try rolling back to a previous version.