LIS error: this configuration section cannot be used in this path

lIS Report errors ：“ This configuration section cannot be used in this path . If the section is locked at the parent level , That's what happens . Lock is set by default (overrideModeDefault=“Deny”), Or by including overrideMode=“Deny” Or old allowOverride=“false” The location of the tag is clearly set .”：

reason ：
IIS 7 A safer web.config Management mechanism , By default, the configuration item is locked and cannot be changed .

terms of settlement ：
stay c:\windows\system32 Find below cmd.exe：

Right click “ Run as administrator ”：

Enter the following two commands :

%windir%\system32\inetsrv\appcmd unlock config -section:system.webServer/handlers
%windir%\system32\inetsrv\appcmd unlock config -section:system.webServer/modules