Drives property (Visual Basic for Applications) | Microsoft Learn

Sub ShowDriveList
    Dim fs, d, dc, s, n
    Set fs = CreateObject("Scripting.FileSystemObject")
    Set dc = fs.Drives
    For Each d in dc
        s = s & d.DriveLetter & " - " 
        If d.DriveType = 3 Then
            n = d.ShareName
        Else
            n = d.VolumeName
        End If
        s = s & n & vbCrLf
    Next
    MsgBox s
End Sub