Hi,
It may be the problem of ASP.Net not enabled on your machine.
Go to Control Panel, On Left side, Select Turn Windows features on or off, and select ASP.Net and some other features that need to be enable for .net environment.
OR to get it working just try any of these.
To install or uninstall ASP.NET 4.5 on Windows 8 or Windows Server 2012, use one of the following options:
Run the following command from an administrative command prompt: dism /online /enable-feature /featurename:IIS-ASPNET45
For Windows 8 client computers, turn on "IIS-ASPNET45" in "Turn Windows Features On/Off" under "Internet Information Services-> World Wide Web Services -> Application Development Features -> ASP.NET 4.5".
For more details refer below link.
https://support.microsoft.com/en-us/help/2736284/how-to-install-asp-net-4-5-on-windows-8-and-windows-server-2012