installing

Im trying to manually install my fallout trilogy disc I bought off of amazon. Keep in mind I know nothing about manual installation (most of the pc games I have are made after 2008 so the install or patches are pretty automatic) but I've been searching the disc in my DVD drive for the...

so apparently when i put the disk in my drive it opened up internet i agreed to terms blah then i chose what fallout to install i started with 1 then i got a setup.exe file i tried to open it it wont open so i did a search on here found out theres a way to manually install it anyways i dont...