Therefore, in case I find some file and can't recall which program it stays for, then in order to know it I should go through all the installation process. The same way they act with the disk and with the main menu. It obstructs looking for the software name in order to run it. The company's name means nothing to a user. The way of selecting components to be installed also differs in different installers.
Problems appear if the component list is presented as a hierarchy.
The right window shows the moment of selecting Microsoft Power Point components. The second window appears instead of first one after the button showing the detailed info was pressed. As you can see they are almost identical. Therefore an user can easily get lost due to the absence of clear landmarks. The necessity to reboot after some installations is a very distressing behavior especially if you have many processes running.