Get the Volume Serial Numbers from all hard disk partitions. These values are part of the filesystem, and were originally intended to detect floppy swaps where the same floppy has been removed and inserted again (because, in this case, unwritten data may still be written). Today these are easily tweakable and of no real use, except for badly-designed software licensing schemes.

public static Dictionary<string, string> VolumeSerialNumbers { get; }