If you believe you have a rat check startup you can do that by right clicking taskbar then click task manager, once its open you will see it say "Startup" click that then you can see what your computer has run when booted up to disable an application that is enabled right click it and click disable, once your done this restart computer then check roaming for the .exe if its not in roaming then check rsps's cache directory (alt method is right click app on startup and open file location).
Keep in mind don't disable stuff your unsure about.
C:\Users\YOURNAME\AppData\Roaming