Improve Windows XP Shutdown Speed
This tweak reduces the time XP waits before
automatically closing any running programs when you give it the command
to shutdown.
Step1:
Go to Start then select Run
Step2:
Type 'Regedit' and click ok
Step3:
Find 'HKEY_CURRENT_USER\Control Panel\Desktop\'
Step4:
Select 'WaitToKillAppTimeout'
Step5:
Right click and select 'Modify'
Step6:
Change the value to '1000'
Step7:
Click 'OK'
Step8:
Now select 'HungAppTimeout'
NOTE: Post your comments after read this Article