HTTP Error 500.21 - Internal Server Error Handler "PageHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler" in its module list

Question:-HTTP Error 500.21 - Internal Server Error Handler "PageHandlerFactory-Integrated" has a bad module "ManagedPipelineHandler" in its module list how to solve this error

Answer:-go to Visual Studio Command Prompt with Administrator mode (Run as Administrator)

go to this location  c:\Windows\system32>%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i press enter button


now refresh you website