This generally happens while or after viewing AVI, etc files. This has to
do with how Windows XP previews files when opened with Explorer.
Suggestions and added info depending:
1. Disable thumbnail view by going to Start/Run/CMD: regsvr32 /u
shmedia.dll
2. And/or run this edit. This edit prevents high usage when browsing AVI
files.
Automated:
AVI Search Remove (Line 74)
http://www.kellys-korner-xp.com/xp_tweaks.htm
Manual Edit: Go to Start/Run/Regedit and navigate to the key below and
delete the default data (right pane).
Or:
HKEY_CLASSES_ROOT\SystemFileAssociations\.avi\shellex\PropertyHandler
Windows Stops Responding When You Click a Large AVI File in Windows
Explorer"
http://support.microsoft.com/?kbid=822430
Explorer.exe Process Uses Many CPU Cycles When Windows Is Idle
http://support.microsoft.com/?scid=kb;EN-US;q317751
Added info:
Run the Task Manager, go to View/Select Columns, and turn on the following
columns: "I/O Read Bytes" and "I/O Write Bytes." This will give you details
as to which process is accessing the disk.
Although many processes will be accessing the disk, look for one with a high
total or a fast rate of increase, especially when you hear the drive being
accessed.
Suggestion: Run the undo on line 367 (right hand side):
http://www.kellys-korner-xp.com/xp_tweaks.htm
SequoiaView:
http://www.win.tue.nl/sequoiaview