Solution to slow shut down in XP (Stuck on "Saving your settings" screen)

This is the problem i had for months before I found out the solution eventually. While shutting down my machine, The screen with "Saving your Settings" will load and take more than 2 minutes before it shut down properly.

After looking for information on google and tried out a lot of combination, finally the problem solved. To benefit those people who have the same experience as I had, below is the summary of the problem I had and the solution to it.

Symptom:
System "hang" at the "Saving your settings" screen for minutes before shutting down successfully; Slow logoff (with Saving Settings for most of the time while logging off).

Cause:
This problem can be caused for a variety of reasons. However, one of them is the improper coding either in Microsoft software or 3rd party software.  With the information provided by the system, there is no way to find out what software needs to be corrected to allow profiles to unload.

Solution:

1. Download UPHClean(User Profile Hive Cleanup service here. 
2. Install UPHClean and run it from the installation folder. 
3. Done. Restart the system and the problem is solved.