Thinking back, have not downloaded any shady programs or been to risky websites in the past 2 days. The fact is, though, my computer has been freezing up randomly - but ONLY WHEN I DON'T TOUCH IT for a period of time - for about a year or so now. It didn't really bother me that much, as it only froze up after about 30 min - hour of no activity, and sometimes decided not to freeze at all, but now I think these two problems are coming from the same source. I just thought it was the PC slowly dying, as I got it 4 years ago refurbished, and it wasn't top of the line, either.
I can provide a HijackThis log and whatever you need. Thanks in advance.