Try this for column I
Sub Example1()
Dim Firstrow As Long
Dim Lastrow As Long
Dim Lrow As Long
Dim CalcMode As Long
With Application
CalcMode = .Calculation
.Calculation = xlCalculationManual
.ScreenUpdating = False
End With
Firstrow = ActiveSheet.UsedRange.Cells(1).Row
Lastrow = ActiveSheet.UsedRange.Rows.Count + Firstrow - 1
With ActiveSheet
.DisplayPageBreaks = False
For Lrow = Lastrow To Firstrow Step -1
If IsError(.Cells(Lrow, "I").Value) Then
'Do nothing, This avoid a error if there is a error in the cell
ElseIf .Cells(Lrow, "I").Value = "0" Then .Rows(Lrow).Delete
End If
Next
End With
With Application
.ScreenUpdating = True
.Calculation = CalcMode
End With
End Sub