Software problem. Thanx for the reply but on the same hard drive in the same folder there is some

Question

Thanx for the reply but on the same hard drive in the same folder there is some of the setup files that actually works and the icons is perfect but most of them does not work, the thing is the ones that does not work is the ones that i previously installed on either my laptop or on the Pc. I don't know if you can maybe use some setup files only once especially when it runs from a drive were is can be changed by windows during the setup to prevent you from using it agene on another system, because the ones that is on cd works every time on any system and i think its maybe because it can not be changed on the cd by windows. I'm a bit confused with all of this as i never had this problem before this is the first time.