First, take out everything of your backpack even all the little paper scraps, lip gloss bottles, paper airplanes, pencils, etc. Organize everything into piles: Put the folders, library books, textbooks, pencils, electronics, etc, in their own separate stacks.
Select "Add Folder to Library" (Windows) or "Add to Library" (Mac).
Instead of clicking on Add Folder to Library, you have to click on Add File to Library, and you have to pick out the individual file.
Next, go to the File menu in iTunes and choose the Add Folder to Library option.
Open iTunes and click on File, then Add folder to library.
Use the Startup Disk option in System Preferences to restart in Mac OS 9, then move the files and folders labeled Library, Users, mach, mac--kernel and mach.sym to Trash.
In most cases, music is stored in the "Music" folder within "Libraries" by default in Windows 7 / Vista.
The model I tested had 500 GB of storage and was split into "My" Library and Backup folders and "Family" Library and Backup folders.
In the library folder, open the Cache folder.
Open your Library folder, then open the Caches folder.
Microsoft has steps for adding — or removing — folders from libraries here.
