Once you have cleaned the list of startup applications, you might want to try a Startup Delayer. This is a very cool free tool which allows you to delay the remaining applications running at startup.
Except drivers, hardware related applications and security suites, you won't need most applications to start immediately. With Startup Delayer you can delay them up to 24 hours. To learn more about how to use it, check out their Help and Support page.
