Alrighty good people, I ask you to ease my paranoia a lil bit. I have good reason to suspect that I have at least one person trying to get/already is inside my computer and he/she/they enjoy harassing me. Not sure why anybody would be able to enjoy doing stuff like this.
Here's some background info on my current situation.
Until recently, I was an absolute idiot(still am technically) and had a very crappy firewall. Now I use Norton and I'm pretty comfortable with it. However before I replaced my crappy firewall with Norton, there were a couple of serious Trojans and keyloggers that had been installed on my computer. Some of it was so bad that the conspirators set passwords on my computer so I was unable to get in. Rebooted my computer from scratch, but that actually didn't fix my problems. So after all of that I got Norton Pro. Scanned my computer and it removed everything that my last firewall couldn't find. Thing is, for the past few months I just can't shake the feeling I have one or two keyloggers that have remained in the shadows. Often when I shut down my computer I get a popup message that stays on the screen only for 2 seconds or so saying something along the lines of win*insert series of numbers and letters here*.dll is shutting down. With that said, I've scanned my hard drive to death with both Norton and anti rootkit software to no avail. Another thing that makes me uncomfortable is that the PC I use now isn't new in the least, I've had it since 2001. Would the age of my computer make a difference with the security capabilities even if I have a respected firewall like Norton running in the background. I've considered getting a new computer since this hacking experience, but I wanted to ask you guys first if there's anything I can do.