I installed voip program called Freecall in my Windows 7 Professional laptop. Now it shows as a Startup item in "System Configuration" console. I tried to uncheck it in the Startup item and restart, but it keeps on adding itself to HKCU\Software|Microsoft\Windows\CurrentVersion\Run. How to remove these kinds of programs from the startup?
Personally I use Autoruns for managing these kinds of programs. However, if you don't wish to download another program you could try msconfig:
If that doesn't work, take a look at Autoruns.