Sub SelectUnlockedCells()
Dim WorkRange As Range
Dim FoundCells As Range
Dim Cell As Range
Set WorkRange = ActiveSheet.UsedRange
For Each Cell In WorkRange
If Cell.Locked = False Then
If FoundCells Is Nothing Then
Set FoundCells = Cell
Else
Set FoundCells = Union(FoundCells, Cell)
End If
End If
Next Cell
If FoundCells Is Nothing Then
MsgBox "All cells are locked."
Else
FoundCells.Select
End If
End Sub