No system is an island - Using Windows And Tech Step By Step

Vista has this service turned on by default called "Superfetch".What this does is keep track of user patterns like which are the most commonly used applications and on startup,load these frequently used applications first for logged in user.

Just like all the Windows services,this too can be turned off or on if you want to explore the performance difference of your Vista system.

Let's take a look at how to turn this service off from command prompt.

Go to Start > Run > cmd

To turn the service off,type :
net stop superfetch

And to turn it back on :
net start superfetch



Feel free to experiment the enabling and disabling of this service and check if it makes a difference in speed of Windows Vista.

Peace.