Hi Blunoob,
Try:
'=============>>
Public Sub Tester01()
Dim SH As Worksheet
Dim rng As Range
Dim rCell As Range
Set SH = ActiveSheet '<<==== CHANGE
Set rng = SH.Range("A1:A100") '<<==== CHANGE
Application.ScreenUpdating = False
For Each rCell In rng
With SH.CheckBoxes.Add(rCell.Left + 5, _
rCell.Top - 2, 5, 5)
.Caption = ""
.LinkedCell = rCell.Address(0, 0)
End With
rCell.Font.Color = vbWhite
Next rCell
Application.ScreenUpdating = True
End Sub
'<<=============
If you are new to macros, you may wish to visit David McRitchie's 'Getting
Started With Macros And User Defined Functions' at:
http://www.mvps.org/dmcritchie/excel/getstarted.htm