Erro Conexão - AspNetSqlProvider

Boa noite a todos. Estou tentando conectar no SQL Server 2008 utilizando asp, já fiz de acordo a uma video aula que estou acompanhando.

Acessei o Visual Studio 2008 Command Prompt, executei o aspnet_regsql.exe, selecionei o Servidor, autenticação do Windos selecionei o banco de dados,configurei o Web.config. porém quando vou em Website -> ASP.NET Configuration, e vou em Security, diz que "O seu aplicativo está configurado atualmente para usar o provedor: AspNetSqlProvider". Sou iniciante, se alguem puder ajudar desde já agradeço pela atenção.

<?xml version="1.0"?>
<!--
Note: As an alternative to hand editing this file you can use the
web admin tool to configure settings for your application. Use
the Website->Asp.Net Configuration option in Visual Studio.
A full list of settings and comments can be found in
machine.config.comments usually located in
\Windows\Microsoft.Net\Framework\v2.x\Config
-->

<configuration>

	<configSections>
 <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
 <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
 <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
 <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
 <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" />
 <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
 <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
 <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
 </sectionGroup>
 </sectionGroup>
 </sectionGroup>
	</configSections>

	<appSettings/>

	<connectionStrings>

	<add name ="StoreString" connectionString ="Data Source=TRAMBIQU-333B74;Initial Catalog = Store; Persist Security Info=True;User ID=userDevmedia;Password=1010" providerName="System.Data.SqlClient"/>
	<remove name ="LocalSqlServer"/>
	<add name ="LocalSqlServer" connectionString ="Data Source=TRAMBIQU-333B74;Initial Catalog = Store; Persist Security Info=True;User ID=userDevmedia;Password=1010" providerName="System.Data.SqlClient"/>

 </connectionStrings>

	<system.web>
 <!--
 Set compilation debug="true" to insert debugging
 symbols into the compiled page. Because this
 affects performance, set this value to true only
 during development.
 -->
 <compilation debug="false">

 <assemblies>
 <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
 <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 <add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
 <add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
 </assemblies>

 </compilation>
 <!--
 The <authentication> section enables configuration
 of the security authentication mode used by
 ASP.NET to identify an incoming user.
 -->
 <authentication mode="Windows" />
 <identity impersonate="true"/>
 <!--
 The <customErrors> section enables configuration
 of what to do if/when an unhandled error occurs
 during the execution of a request. Specifically,
 it enables developers to configure html error pages
 to be displayed in place of a error stack trace.

 <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
 <error statusCode="403" redirect="NoAccess.htm" />
 <error statusCode="404" redirect="FileNotFound.htm" />
 </customErrors>
 -->

 <pages themes ="Store">
 <controls>
 <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 </controls>
 </pages>

 <httpHandlers>
 <remove verb="*" path="*.asmx"/>
 <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false"/>
 </httpHandlers>
 <httpModules>
 <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 </httpModules>

	</system.web>

	<system.codedom>
 <compilers>
 <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4"
 type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
 <providerOption name="CompilerVersion" value="v3.5"/>
 <providerOption name="WarnAsError" value="false"/>
 </compiler>
 <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4"
 type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
 <providerOption name="CompilerVersion" value="v3.5"/>
 <providerOption name="OptionInfer" value="true"/>
 <providerOption name="WarnAsError" value="false"/>
 </compiler>
 </compilers>
	</system.codedom>

	<!--
 The system.webServer section is required for running ASP.NET AJAX under Internet
 Information Services 7.0. It is not necessary for previous version of IIS.
 -->
	<system.webServer>
 <validation validateIntegratedModeConfiguration="false"/>
 <modules>
 <remove name="ScriptModule" />
 <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 </modules>
 <handlers>
 <remove name="WebServiceHandlerFactory-Integrated"/>
 <remove name="ScriptHandlerFactory" />
 <remove name="ScriptHandlerFactoryAppServices" />
 <remove name="ScriptResource" />
 <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode"
 type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode"
 type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
 </handlers>
	</system.webServer>

	<runtime>
 <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
 <dependentAssembly>
 <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35"/>
 <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/>
 </dependentAssembly>
 <dependentAssembly>
 <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35"/>
 <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/>
 </dependentAssembly>
 </assemblyBinding>
	</runtime>

</configuration>