This configuration section cannot be used at this path. This happens when the section is locked at
Module IIS Web Core
Notification BeginRequest
Handler Not yet determined
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 \\?\F:\test\web.config
here is your issue solved
lets solve another issue
Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0,
Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The
system cannot find the file specified.
run ASPAJAXExtSetup
microsoft asp.net 2.0 ajax extensions
here is your issue solved