Dang, there are few things I will sit down and spend a continuous 5 hours on, but I believe trying to figure out what happened to my sound on my old computer is one of them (it was the radeon drivers, just didn't realize it at the time). I go through the add/remove programs are and uninstall anything I don't need, and if I don't recognize the name I Google it and see if its useful, which it usually ends up not being, some fax drivers from a 2003 machine or other crapware. I also have a 3rd party firewall, which has actually caught some connections I didn't initiate (idk if they would of done anything, but still). I just like to keep my computers free of anything I don't use and am a control freak when it comes to network connections.