Random sporadic disk access in XP?

[Pepsin]

Hi. I have a small problem with XP.
A couple of times every minute (5-10 times) there's a tiny burst of disk access. The HDD light comes on *very* briefly and the drive goes *click* once or twice. This isn't usually a problem and doesn't affect performance (that I can notice). However, when I'm trying to sleep in the same room with the comp on, those irregular clicks wake me up. Also I don't like it when my system does thigns that I can't control or understand, it's like it's possessed

So how do I *completely* stop all disk access in XP when the system is idle? I have tried shutting down all the typical suspects that I can think of like the anti-virus program (norman), the task scheduler (though nothing is scheduled), the OO defrag process, MSN, System Restore, Firefox and Thunderbird..but something is still accessing the disk a few times a minute, but only reading/writing extremely little data judging by the extremely short bursts of activity.Any ideas? Is there like some monitor program I can use to see which .exe is doing it? It's driving me crazy.

 

[Met-AL]

http://www.sysinternals.com/Utilities/Diskmon.html

use this to find out what is source of your disk activity

 

[Pepsin]

Hmm that program doesn't seem to actually show which program is accessing the disk. It did however show that it's a write operation, not a read that's occurring.

 

[hulksterjoe]

I'm gonna guess you've got indexing turned on or maybe your AV is writing to its own log file as it scans memory

 

[Pepsin]

Actually the indexing service is disabled and I also completely disabled Norman anti-virus..