Shutdown Time Tweak

We used to tweak XP to speedup the shutdown time. Actually in Windows Vista we can also apply a little tweak to reduce the ammount of time Vista takes to shutdow/ reboot by doing the following:

Note: Create a system Restore Point before doing anything else. Modifying the registry can cause your system to crash, Use it at your own risk, I am not responsable for any damage this may cause to our system, so create a restore point, backup, etc.

Open Regedit (WINDOWS KEY + R on your keyboard, or by clicking Start/Run) and type "regedit" without quotes.
Navigate to [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control] On the right panel look for the "WaitToKillServiceTimeout" string and change it value to 1000 by right clicking the string and selecting Modify...
Default Value WaitToKillServiceTimeout=20000