I'm not sure what box's you unchecked under the Startup tab. If you aren't sure which ones you need search google or the link below for the name of the file starting, eg: acrotray.exe .
http://www.liutilities.com/products/...rocesslibrary/

Or use the free trial I suggested before, uninstall it when the trial period runs out if you don't intend to buy it at that time. There are similar programs out there for free, but none that I've tried that show you information about the file so you can determine if it's needed or not.

If you want some further tweaks for performance visit Black Viper's OS Guides and go to the Services Configuration guide for your operating system.
Black Viper's Operating System Guides

Anytime you change msconfig it will prompt you to restart and display a message on start up that starup options have changed..., check the box not to display this message again.