The "Page not found" error on HC login page after installation.

Question: How to fix "The Page not found error" on HC login page after installation?

Answer:
This error occurs due to one of the following reasons:

Reason#1: If under IIS :: Web Service Extensions ASP.NET 2.xx is not allowed.
Solution: To resolve this issue allow the ASP.NET 2.xx extensions which would fix the error.

Reason#2: If under IIS :: Hosting Controller :: Properties :: ASP.NET tab here ASP.NET 2.xx is not allowed.
Solution: To resolve this issue allow the ASP.NET 2.xx framework which will fix the error.

Reason#3: If under IIS :: Hosting Controller :: Properties :: Home Directory tab under Execute permissions "Scripts and Executable Permissions" are not set.
Solution: To resolve this issue allow the Scripts and Executable Permissions under execute permissions at IIS :: Hosting Controller :: Properties :: Home Directory tab which will fix the error.

Reason#4: If under IIS :: Hosting Controller  :: Properties :: Document tab "default.aspx" is not given as default document.
Solution: To resolve this issue add default.aspx at above path which will fix the error.

Reason#5: If you have corrupt ASP.NET installation on your machine.
Solution: Reinstall ASP.NET frame work on your machine to fix this issue.