AnswerInstall on second computer and then look for backup or export in the FAQ section of the itunes website.
Or you could go to the old computer and then put the folder
named 'iTunes' on a CD-ROM, USB stick or external hard drive then
put it on your new computer
Here is a video tutorial https://www.youtube.com/watch?v=NcX2de0dGZw on how you can transfer your iTunes library to a new laptop.