People who are techies can easily remove program files on computer systems. But common people may find it difficult to do the same. They need proper guidance for doing this. If not, the software in the computers may get corrupted. If people have logged on to the systems as Administrators, then they can remove the files that they don’t need. They need to go to the Start menu and open control panel option. They should then click on add or remove program option to remove the programs from the computers. They can also try searching for more information on removing program files on the internet.