To free up disk space, Outlook Express can compact messages. This may take up to a few minutes.

Here are the things I did that resolved the issue for me:

I reset Compact Check Count to 0, and I uninstalled Windows Search 4.0. 

As for Outlook Express: I don't use it.

Thank you for the reply...and thanks for the advice & info.

http://answers.microsoft.com/en-us/windows/forum/windows_xp-performance/outlook-express-can-compact-messages-how-do-i-turn/b7e41d7f-d0db-4930-9c64-19e3c7b7d5cf?tm=1339359499078&page=1#_self

Try resetting the compact count in the registry:

1. Start the registry editor.
2. Open this key:

HKEY_CURRENT_USER\Identities{identity}\Software\Microsoft\Outlook Express\5.0

where identity is a string of letters, numbers, and dashes. 3. Set the value of Compact Check Count to 0. 4. Close the registry editor.

For more information, see Why You Should Let Outlook Express Compact Messages When It Asks You .

Warning: Incorrectly editing the registry might damage your system and prevent Windows from starting. Before doing it, back up your important data, make a restore point, and make sure you know how to repair a damaged system.

Boulder Computer Maven

Microsoft Most Valuable Professional