My dad knows almost everything there is to know about computers at this point--His jobs have been centered around them for as long as I can remember, and he got a masters degree in networking. He also likes to put spyware on my computers. If there's a way for him to monitor my computer he will, and this computer probably had every type there is, as it was in his house for several years. I don't live with him at the moment, and he, or more so his wife, have strict rules about computer usage--As in I can only use it for like an hour a day. Like I said, I moved, but I would like to know if he could have spyware on here, so I could remove it. I have replaced the existing hard drive--So there's no way for there to be any on there, but is there some other form of abstract spyware? I could imagine some sort of device he could have hid in the power supply that monitors the temperature, or something in that realm. I know a bit about computers myself, although I'm far from an expert, and I know next to nothing about spyware, never having used it. Am I just being paranoid--Is replacing the hard drive enough, or are there other ways he can spy on me?