Change where iTunes files are stored on PC
By default, the music, TV shows, movies, podcasts, and other files that appear in your iTunes library are stored within your user folder in a subfolder:
Music\iTunes\iTunes Media
Locate your iTunes files
In the iTunes app
on your PC, choose an option (Music or Movies, for example) from the pop-up menu at the top left, then click Library.
Do one of the following:
Find out where a file is stored: Select the item, then choose Edit > [Item] Info.
The path to the file is shown at the bottom of the File pane (next to Location).
Show the file in File Explorer: Select the item, then choose File > Show in Windows Explorer.
Change where imported files are stored
You can change where your iTunes media files are stored.
Important: For best results, don’t change the location of the iTunes folder or the folders inside it.
In the iTunes app
on your PC, choose Edit > Preferences, then click Advanced.Click Change, then select a new location for your files.
From now on, new songs and other items you import will be stored in the new location. Songs you’ve already imported stay in their current location.
To go back to storing imported files in the iTunes folder, choose Edit > Preferences, click Advanced, then click Reset.
If a song doesn’t appear in iTunes anymore
If you move songs out of the iTunes folder, you might have to add the songs to iTunes again before you can play them.
If you throw away the iTunes Library file, your songs will no longer appear in your library even though the song files are still in the iTunes folder.
If files have mysteriously disappeared, run a full scan of your computer with up-to-date antivirus software.
To make your songs appear in the library again:
First, drag your iTunes folder (by default, located inside your PC’s Music folder) to the iTunes window. The songs appear in your library again. If the iTunes Library file was included, you’ll also see your original playlists.
If the above suggestion doesn’t work, your songs may be elsewhere on your hard disk. Go to Start, choose Search and search for a song by title or artist. Drag folders containing songs to iTunes to add the songs to iTunes again.
If you don’t find songs by searching, check the Recycle Bin.