sizzling :
You don't need to do anything, just plug it in. It will then show in Windows and you can start using it
Usually this is not the case.
You need to go into disk management, set a partition and assign a drive letter
https://technet.microsoft.com/en-us/magazine/gg309170.aspx
I would suggest you then move the movies to the 1TB drive.
You cant just move a program or game to another drive without uninstalling or reinstalling it.