windows XP stores a couple of values in its registry which are responsible for determining how long to wait before shutting down open applications and services once the shutdown command has been given.
By editing these two settings and changing them to lower values, you can considerably decrease the amount of time that Windows XP needs to successfully shut itself down. The first part of this tweak deals with setting the amount of time Windows will take to kill open applications on shutdown.
Open REGEDIT and navigate to HKEY_CURRENT_USERControl PanelDesktop'
Highlight the WaitToKillAppTimeout' value.
Set it to '1000.
Now highlight the HungAppTimeout' value
Set it to '1000 also.
The second part of this tip changes the same settings, this time for all users on the system.
Open REGEDIT and navigate to HKEY_USERS.DEFAULTControl
PanelDesktop'
Highlight the WaitToKillAppTimeout' value.
Set it to '1000.
Now highlight the HungAppTimeout' value.
Set it to '1000 also.
In the third part of this tip, we will alter a second registry setting to decrease the amount of time Windows XP will wait before shutting down active services after receiving a shut down command.
Open REGEDIT and navigate to
HKEY_LOCAL_MACHINESystemCurrentControlSetControl'
Highlight the value WaitToKillServiceTimeout'
Change this value to '1000.'
This should help to considerably speed up the time Windows XP takes to shut itself down.
Auto kill tasks on shutdown
By default, Windows XP will prompt the user for input if there are one or more applications which have crashed or are not responding and it receives a shut down command. This halts the shutdown process entirely until the user approves the stopping of the non-responsive app.
By altering the registry slightly, Windows XP can be set to close crashed applications automatically. While this does not technically speed up the shut down process, it does streamline it, and ensure that the user will not give the shutdown command then get up and leave, only to find the PC still powered on because Windows never received input on what to do with a hung application.
To allow Windows XP to close non-responsive applications automatically upon shutdown:
Open REGEDIT and navigate to HKEY_CURRENT_USERControl PanelDesktop'
Highlight the value AutoEndTasks.'
Change the value to '1
XP will now be able to close hung applications without user input during the shutdown process.
My Experience
This tweak has really increased my systems shut down speed. I can now shutdown my PC within a few seconds.