Alright, let me sum this up fast for you all, I've been having problems with my computer as of late, ones that are slowly beginning to grow worse. I started noticing the problems while playing an online video game.

Now, it might not seem particularly disasters, but here is what has been happening, there seems to be some sort of problem that is resolving around my media player or something along those lines, for example, sometimes youtube video's stop working, certain online games like League of Legends will crash due to a random error and so on and so fourth and in general my computer has just been going slower and slower and slower.

I'm running windows XP professional and all in all this is starting to effect my ass-kicking on video games, I've run CCS cleaner, defraged the entire drive, used a variety of programs to make sure I was Virus/maleware free.... I'm sorta at wits end as to what to do at this point to fix the problem.

The best advice I could give you is re-format. You're hardware isn't getting slower and more corrupted, it's your OS. Just back up all your data and reinstall, it really doesn't take to long.