Option Explicit

Sub ChrisOK()
    Dim i As Long, lr As Long
    lr = Range("A" & Rows.Count).End(xlUp).Row
    Application.ScreenUpdating = False
    For i = lr To 1 Step -1
        If Range("C" & i) = "" Then
            Range("C" & i).EntireRow.Delete
        ElseIf Range("D" & i) = "#VALUE" Then
            Range("D" & i).EntireRow.Delete
        End If
    Next i
    Application.ScreenUpdating = True
    MsgBox ("Complete")
End Sub