Select <Start>, <Run> and in the box that pops up type 'msconfig' (without the '). There is a tab called Startup. Click on this tab and deselect anything you dont want to run at startup from this list. If you don't recognise the name then best to leave it alone as a lot of stuff needs to run, i.e your Firewall/antivirus etc. You will be prompted to restart your PC for the changes to take effect.