Event triggered by ANY checkbox click

I'm going crazy trying to find a way for code to run when I click on ANY of the checkboxes on my sheet. I've seen multiple articles talking about making a class module, but I can't seem to get it to work.

I have code that will populate column B to match column C. Whatever I manually type into C10 will populate into B10, even if C10 is a formula: =D9. So, I can type TRUE into D10 and the formula in C10 will result in: TRUE and then the code populates B10 to say: TRUE. Awesome... the trick is to have a checkbox linked to D10. When I click the checkbox, D10 says TRUE and the formula in C10 says TRUE, but that is as far as it goes. The VBA code does not recognize the checkbox click. If I then click on the sheet (selection change), then the code will run, so I know I need a different event.

It is easy enough to change the event to "Checkbox1_Click()", but I want it to work for ANY checkbox I click. I'm not having ANY luck after days of searching and trying different things.

here is the code I'm running so far

    Private Sub Worksheet_SelectionChange(ByVal Target As Range)
Dim i As Long


For i = 3 To 11
    Range("B" & i).Value = Range("c" & i)
Next i
    End Sub

Any help would be appreciated.