Getting HTTP Error 500.19 - Internal Server Error in IIS8

Hello,

I recently deployed my application to IIS 8. whenever I try to access the page I get this error:

Detailed Error Information:

<div>

Module	WindowsAuthenticationModule
Notification	AuthenticateRequest
Handler	PageHandlerFactory-Integrated-4.0
Error Code	0x80070021
Config Error	This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".
Config File	\\?\C:\EOPFV5\eOPF\web.config

</div> <div>

Config Source:

263: <authentication>  264: <windowsAuthentication enabled="true" /> 265: </authentication>

</div><div></div><div>I have tried this: http://forums.iis.net/t/1179834.aspx/1 and </div><div>this: http://stackoverflow.com/questions/9794985/iis-this-configuration-section-cannot-be-used-at-this-path-configuration-lock</div><div></div><div>Still not working. </div><div></div><div>Please help.</div><div>

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