move and run Itunes to external harddrive on windows 10
woulkd like to move Itunes to my external drive and run it from there to free up space on my PC
iOS 9.2
You should leave the iTunes application where it is, on the system drive. You can, however, easily move your iTunes library to an external drive. As long as your library is in the standard location and all your content is within the standard folders, you can copy the complete library structure (by default, C:\Users\username\Music\iTunes) to an external drive (putting it in the roots, as X:\iTunes if the external HDD is drive "X"). Then hold down SHIFT as you start iTunes and when you see this prompt:
click on Choose Library... then navigate to and select the iTunes Library.itl file in X:\iTunes.
See turingtest2's user tip on Make a split library portable for more details, including the steps you may need to follow if your current library is not self-contained.