Libraries act as pointers to various folders containing similar content such as music, video, photos, etc. You can easily add or remove libraries from your Navigation pane to suit your needs
To hide a library from the Navigation Pane:
1. Open a folder, for example, Computer.
2. Go to the Navigation Pane, right-click the desired Library and select Hide library from Navigation Pane.
The library will no longer be displayed in the Navigation Pane.
To show a library from the Navigation Pane:
1. Click on the Windows Orb on the taskbar. Open your Libraries folder.
2. Find the desired library you wish to add. Right-click the library and select Show library in Navigation Pane.
The library will now appear in the Navigation Pane.