IIS web.config Error 404

[aliciacbu]

Hi everybody!

My web server is IIS 7.5 and I'm trying to convert .htaccess files to web.config but I have a problem with the second web.config (in /public). The links in the menu get an Error 404.

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
       <rewrite>
          <rules>
             <rule name="Main Rule" stopProcessing="true">
                 <match url="^(.+)$" ignoreCase="false" />
                  <conditions logicalGrouping="MatchAll">
                    <add input="{REQUEST_FILENAME}" matchType="IsDirectory" ignoreCase="false" negate="true" />
                   <add input="{REQUEST_FILENAME}" matchType="IsFile" ignoreCase="false" negate="true" />
                    </conditions>
                  <action type="Rewrite" url="index.php?url={R:1}" appendQueryString="true" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>
</configuration>

The web.config file in / works well:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
       <rewrite>
          <rules>
             <rule name="public" stopProcessing="true">
                            <match url="^(.*)" ignoreCase="false" />
                             <action type="Rewrite" url="public/{R:1}" />
                      </rule>
          </rules>
         </rewrite>
    </system.webServer>
</configuration>

Can someone help me with this or with the configuration for URL in config.php?

Error details:

IIS Web Core
MapRequestHandler
StaticFile
0x80070002

URL request: http://localhost:81/site/public/page1
Path: C:\inetpub\wwwroot\site\public\page1

Thank you!!!