If you’re simply looking to move your iTunes library to an entirely new computer, the process is actually quite a bit simpler than relocating the content, provided certain conditions are met:
You are moving your iTunes library between two computers using the same operating system and iTunes version; and
You plan to store the iTunes library database and content in the same relative locations on the new computer
If this is the case, then transferring your iTunes library to a new computer is quite simple: Just copy the entire iTunes folder and all sub-folders from your “Music” (Mac) or “My Music” (Windows) folder on your old computer to the corresponding folder on the new computer.
If you have changed your iTunes Media Folder location from the default, simply make sure you copy that to the corresponding location on the new computer as well. In other words, if you have your iTunes Media folder set to D:Music then you must copy it to D:Music on the new computer—remember that iTunes stores the full path to each music file in your library, so your music files must be in the same place on the new computer in order for iTunes to find them.