HTTP Error 500.19 with 0x8007000d on IIS7 "Malformed XML" in web.config

After so much pain i could resolve this error. The actual reason for me is i was using some url rewriting in config. After removing error has gone. The below is the code which i have removed from web.config.

  <serverRuntime frequentHitThreshold="1" frequentHitTimePeriod="10:00:00"/>
<rewrite>
  <rules>
    <rule name="HTTP to HTTPS redirect" stopProcessing="true">
      <match url="(.*)"/>
      <conditions>
        <add input="{HTTPS}" pattern="off" ignoreCase="true"/>
      </conditions>
      <action type="Redirect" redirectType="Permanent" url="https://wikigurus.com/{R:1}"/>
    </rule>
  </rules>
</rewrite>

Did you remember to reinstall the rewrite module? It's not included with IIS 7.5 by default.

Beyond that, here is a similar question - I think the part about malformed is a red herring.