We may have crossed links here. Woodchip is referring to the startup programmes. All of these can safely be unticked and the machine rebooted. It will not stop windows loading. As woodchip also says if you do have a problem with any programme you can go back and retick it.
All of my start up tab is disabled.
Rtus and VoG refer to running processes which is a totally different application of windows. This must be edited with the utmost caution.
I my self have 19 processes running in the background, my system idle process is 96% at the moment. This is the important figure.