nopcommence Handler “ExtensionlessUrlHandler-Integrated-4.0” has a bad module “ManagedPipelineHandler” in its module list

Handler “ExtensionlessUrlHandler-Integrated-4.0” has a bad module “ManagedPipelineHandler” in its module list

windows 7 IIS 7.5,  by default, it use dot net 2.0 framework as application pool.  so first need change framework to 4.0.  

This error is because of dot net framework 4.5 does not register correctly. 

you can register dot net framework 4.5 

c:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i

run as admin

Or you can simply re-install dot net framework 4.5

from either webplatform installer or just download dot net framework 4.5 and install, restart