Most users will pickup some free programs from the internet without even knowing what they just did.
What can happen is that while you are installing certain program - installer will install one ore more additional programs with it, that's why it is very important to read every step during the setup process.If you are offered some additional programs make sure that you make those unchecked otherwise you will end up with sluggish computer and too many programs at Windows start-up.
Click Start button and navigate to Control Panel. Next click uninstall a program under Programs option and following window will appear. Carefully choose what to uninstall. Also keep in mind that uninstalling an application from window shown below will completely remove any data associated with it. So just delete what you really don't need anymore. Now you should know How to uninstall programs on Windows 7
