Explorer.exe Usage Issue

Just recently, my computers been having some laggish issues with Explorer.exe. Dont understand what is causing this to happen now though. I havent done anything diffrent then what I normally do. No issued sites, ect.

Randomly explorer.exe will jump to 75% or more for a second or two.

Now I do understand this doesnt seem like much of an issue, but its extremely noticable. Playing games and such, I can tell when it happens. And it does happen often. Every minute or so it happens.

I dont understand what is causing this issue either. Ive tried all the basics of fixing any issues..

- Virus Scan (In Normal and Safe Mode)
- Adware scans and such, more then one product.
- ect..

I dont see why this just started, but its getting really annoying trying to do anything and this happens.

System Specs:

- Windows XP Professional
- AMD Athlon XP 2600+ (Barton Core) (Running at 1.92GHz -- L1:64KB L2:512KB)
- 640MB DDRAM (Kingston)

As I said before, this only just started happening. My install date for Windows is May 2005 and Ive never had and issue before.

Unplug all of your drives except the master hard drive and see if it still does it.

Also, are you on a network? Networks can cause lag occasionally depending on how they are configured.

Well, as I said before this just started happening randomly. My network hasnt been changed since I first hooked it up and configured it. I dont use much in my comp either as in extra drives and such either.

So I dont see whats causing the lag to happen. It seems to happen more often when I have a game running then it does when Im just using the computer for regular things.