[SOLVED] Fix Duplicate Conditional Formatting Rules in Excel 2016

You have conditional formatting rules in Excel 2016 and all of a sudden they are duplicated all over the place and super messy. This fixes it.

me@jaykilleen.com wrote this over 5 years ago and it was last updated over 5 years ago.

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I've been doing conditional formatting in Excel for ages. Back before the 2016 days. It always annoyed me that rules would become duplicated. For example, I'd set rules on a range of cells like A1:D4 but if I inserted a column then my rules would get duplicated and split into two rules around the location where I entered the new row.

This is annoying and I have finally decided to fix it. Wasn't very easy to find so below is the link to what I found as well as a copy of the steps to fix this. In case the site ever goes down and I need to refer back to those steps.


  1. Start Registry Editor:
    In Windows 10, go to Start, enter regedit in the Search Windows box, and then select regedit.exe in the search results.
  2. Locate and then select the following registry entry:
  3. On the Edit menu, point to New, and then select DWORD Value.
  4. Enter ReplaceCFOnPaste, and then press the Enter key.
  5. In the Details pane, press and hold (or right-click) ReplaceCFOnPaste, and then select Modify.
  6. In the Value data box, enter 1, and then select OK.
  7. Exit Registry Editor.