Handler "svc-Integrated" has a bad module "ManagedPipelineHandler" in its module list

If you  will get this error while running your wcf application then you didn't install the prerequistes for ASP.NET 4.

To install the prerequistes go to
Start --> All Programs --> Microsoft Visual Studio 2008 --> Visual Studio Tools --> Open Visual Studio Command Prompt.
Run Visual Studio 2008 Command Prompt as “Administrator”.

Type the following:
     aspnet_regiis.exe -i

Run your application.

Windows could not start the SQL Server (MSSQLSERVER) service on Local Computer.Error 1069: The service did not start due to a logon failure.

I was getting the same error since I had changed the password of my computer. I have changed in the services after that it is working fine.

Go to Run-->services.msc--> SQl Server(MSSQLSERVER) . Right click --> Properties -->  Click on "Log on" tab. I have changes the password and retype the current windows password again. It works.