When installing SCOM 2012 with web console got this error message during pre-request checks /installation.

When installing SCOM 2012 with webconsole got this error message during pre-request checks /installation.
The ISAPI and CGI Restrictions are disabled or missing: Web Console cannot operate properly because the ISAPI and CI Restrictions in Internet Information Services (IIS) are disabled or missing for ASP.NET 4.0. ASP.NET 4.0 Registration Check: The ASP.NET 4.0 handler is not registered with IIS. Solutions: open a Command prompt as Administrator and run the following command which registers ASP.NET 4.0 with
%WINDIR%Microsoft.NETFramework64v4.0.30319aspnet_regiis.exe –r You will get below similar output: Start installing ASP.NET (4.0.30319) and changing IIS configuration to use this version of ASP.NET. Finished installing ASP.NET (4.0.30319) and changing IIS configuration to use this version of ASP.NET. Now open Internet Information Services (IIS) Manager, open ISAPI and CGI Restrictions properties of the web site, select ASP.NET v4.0.30319, and then click Allow. NOTE: ISAPI and CGI Restrictions in IIS for ASP.NET 4 are not enabled by default.