Removing Server tag in Header of IIS10

Question

I am asking this question here because every other trick in the book from various sites including microsofts has failed to fix this for me.

I have added

<security>
      <requestFiltering removeServerHeader="true" />
    </security>

in <system.webserver>

Then i also added

<system.web>
    <httpRuntime enableVersionHeader="false"/>
  </system.web>

also added

 <httpProtocol>
      <customHeaders>
       <clear />
      </customHeaders>
 </httpProtocol>

However none of this seems to remove the "Server" header from the response.

Any idea as to what else i can try other than URlRewrite or outboundrule??