I now have an update to my situation.

Apparently, even a non updated version of Avast 5.0.667 starts spiking with CPU usage after a reboot. I tried repairing it, and now the CPU usage stays at 40-50% even after I uninstall and reboot. I have no clue how to fix this. Can anyone look a little deeper into my computer to find the issue?

Edit: I tried something from an older thread, where people found issues between Avast and Acronis True Image, so I uninstalled Acronis, and now the CPU levels are back to normal. I’m not going to attempt to update this until I have more information though.