Reinstalled antivirus (different), problem gone, for now.
I really plan on getting a new computer, but that has to wait.
Problems aside, that HD thing bothered me for a whole day.
Let me guess, McAfee was your Problem, right? An "Anti-Virus-Program" might close a bunch of Doors where Viruses could come in, but it also opens leaks, as every Anti-Virus-Program. Unless your Anti-Vir is from the same Software Company than your OS, it will open such leaks, especially if it is a universal Version for multiple operation Systems.
TE is slowly coming. Not as slow as Redpower slowly, but pretty slow.
KingLemming is becoming the next Eloraam if that goes on.