Windows 7 IIS (HTTP Error 500.21-Internal Server Error) Solution

The following error occurs when you enter http: // localhost/in the browser during the test today:

HTTP Error 500.21-Internal Server Error

Handler "webservicehandlerfactory-integrated" has a bad module "managedpipelinehandler" in its module list.

 

I found the reason on the Internet. The result is

Cause: after the Framework v4.0 is installed, IIS is enabled again. As a result, the framework is not fully installed.

Solution: Start-> AllProgram-> Attachments-> right-click "command prompt"-> Run as administrator-> % WinDir % \ Microsoft. NET \ framework \ v4.0.30319 \ aspnet_regiis.exe-I