Make sure that you are NOT in Classic Mode in Control Panel, So go to Control Panel having said that then click on Ease of Access, then click on "speech recognition"
Now on the sidebar on the left hand side, there should be a link to "Advanced Speech Options" , it should be above "Text to Speech" link.
Now click on it then in speech recognition tab, in user settings un-check the box for start up or change anything you want!
It is very simple but most people don't know how to do it!
Hope that above helps.
