Gaming Problem

[[Psych]]

Check for malware too. This could be a fair bet if it's suddenly gone slow, or if it's a good spec PC (faulty hardware aside). Some good bets would be:
- Malwarebytes' Anti-Malware (Free)
- Super AntiSpyware
- Spyware Doctor
- Spybot S&D (Free)
- Lavasoft Ad-Aware (Free)

I would maybe run a half-decent online virus-scan too, from a reputable known company such as Norton, Panda or Trend. See if anything crops up. I would encourage scanning for spyware at least every 1-2 weeks. It's suprising what can be installed if you don't keep a close eye on what you visit, what you download, what's installed etc.