Blue cloud icon: Indicates that the file is only available online.There are different cloud state icons shown by File Explorer Navigation Pane. The file on-demand feature lets you access all your files stored in the cloud without having to download them. In newer Windows 10 versions, the Navigation Pane also shows cloud state icons to inform users about the state of their OneDrive files and folders on demand. Navigation Pane is basically used to navigate between drives, files and folders quickly and easily. Navigation Pane contains list of hard disk drives and other icons such as Quick Access, OneDrive, Network, etc.
Navigation Pane is the left-side pane present in a Windows Explorer window (also referred as This PC, File Explorer and My Computer).
