Window Vista - How to remove some program during the start up
Stop a program from running automatically when Windows starts
You can improve your computer's performance by preventing unnecessary programs from running automatically when Windows starts. Here's how:
Click the Tools button, and then click Software Explorer.
In the Category box, click Startup Programs.
Select the program that you want to prevent from running, and then click Disable.
Click Yes to confirm that you want to stop that program from running.
Repeat steps 4 and 5 for every program you want stop from running.
tried it not working..the Disable button grey off.