Better explanation: Noise started at 4pm. Had to shut off computer to get noise to stop.
Update 4:25 PM: Checked online and with parents and figured out what is causing the buzzing noise; a dust clog in the fan. Unfortunately, parents said they couldn't help, but my older sister can.
I can only get in a few minutes on my computer without that stupid noise starting, so don't expect me to be online as much until we can get the noise to stop.