Services which support to other programs are running in the background and provides in Windows 7. Sometimes if you need to disable a Windows 7 service of your choice to speed windows 7 up, here is How to do:
1.Open the Control Panel. Click the Administrative Tools --> Services.
2.Right click on the service you want to disable and click on Properties.
3.Click on the Stop button to stop the service
4.select Disable in the Startup type and click on OK.