Lately I've been having some computer issues. While playing games (Battlefield 2142, World of Warcraft, Team Fortress 2 and some Half Life 2) I've been experiencing a lot of freezing, lag, and crashing.
Mainly in HL, WoW and BF, the framerate will randomly drop, sometimes to the point where the game is unplayable.
In WoW and HL, I've been having lock-ups quite frequently, the game simply freezes, and sometimes it will fix itself after a while, but often I have to reboot. During the lock-up I can't exit to my desktop or anything, yet I can still hear my music, and I can still talk on skype if I'm using it.
Team Fortress has just straight up crashed to desktop a few times, after giving me some graphical issues (Such as wireframes everywhere, and missing textures).
Now, these issues had been contained to my games for the last week or so, and I kind of just pushed them aside as annoyances. But now, my computer is having slow-downs when I'm just trying to navigate my desktop or play music. And, when I was trying to get on the internet to post this message, Firefox refused to start, so I had to use Internet Explorer.
I have done several virus and other scans, such as: AVG, AVG Anti-Spyware, Spybot S&D, Malware Bytes Anti-Malware, and Ad-Aware. All of these came up clean, as did my HijackThis Log when scanned on www.hijackthis.de
This led me to believe that it was a hardware issue. So, I cleaned up my hard drive, ran defrag etc. Then I opened up my computer, and cleaned all the dust and blew it all out with a can of air. In addition I installed an extra fan to cover all my bases. After that, I ran a Memory Test on startup, and that had no errors either.
So, now after all of that, here I am. I am completely clueless as to what the problem could be, and I hope that the minds here can help me out!
Sys specs are as follows:
250 GB HDD.
About 2 years old or so, I think.