Wordpress url rewriting does not work on iis7 - wordpress

Question

I have a Wordpress website running on IIS7.
I had a big problem because all my url except the home page contain index.php.
My home page : www.mywebsite.com
Others : www.mywebsite.com/index.php/post1, www.mywebsite.com/index.php/post2 and so..
I'd like to use the url rewriting mode of IIS7. My web host told me that the rewriting module is activated.
I don't know what to write in web.config file. I've tried :
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="wordpress" patternSyntax="Wildcard">
<match url="*" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" url="index.php"/>
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
My url does not change !
and this :
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Supprimer index.php">
<match url="^index.php/([_0-9a-z-]+)/([_0-9a-z-]+)" />
<action type="Rewrite" url="{R:1}/{R:2}" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
I've also tried:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Main Rule" stopProcessing="true">
<match url=".*" />
<conditions logicalGrouping="MatchAll">
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" url="index.php/{R:0}" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
Always does not work.
Could you help me to remove index.php in the url please ?

Answer 1

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<httpErrors errorMode="Detailed"/>
<rewrite>
<rules>
<rule name="Main Rule" stopProcessing="true">
<match url=".*"/>
<conditions logicalGrouping="MatchAll">
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true"/>
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true"/>
</conditions>
<action type="Rewrite" url="index.php/{R:0}"/></rule>
<rule name="wordpress" patternSyntax="Wildcard">
<match url="*"/>
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true"/>
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true"/>
</conditions>
<action type="Rewrite" url="index.php"/>
</rule>
</rules>
</rewrite>
<defaultDocument>
<files>
<clear/>
<add value="index.php"/>
</files>
</defaultDocument>
</system.webServer>
</configuration>