Using VBA to apply conditional formatting to a range of cells
You need to do something like this (Range("A25") is exactly what you are going to find):
With Range("A25") .FormatConditions.Delete .FormatConditions.Add Type:=xlExpression, _ Formula1:="=" & c.Address '. '. '.End Withand there is no need to write "=" & c.Address & "=TRUE", you can use just "=" & c.Address.
The "applies to" is inherent in the Selection that the With block is performed on.