To make a complete list of the volumes on a computer, or to manipulate each volume in turn, you can enumerate volumes. Within a volume, you can scan for mounted folders or other objects on the volume.
Three functions allow an application to enumerate volumes on a computer:
Begin a search for volumes with FindFirstVolume. If the search is successful, process the results according to the design of your application. Then use FindNextVolume in a loop to locate and process each subsequent volume. When the supply of volumes is exhausted, close the search with FindVolumeClose.
You should not assume any correlation between the order of the volumes that are returned by these functions and the order of the volumes that are returned by other functions or tools. In particular, do not assume any correlation between volume order and drive letters as assigned by the BIOS (if any) or the Disk Administrator.
See Mounted Folder Examples for an example of how to enumerate the volumes on a computer.