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IIS – Could not load file or assembly…

Could not load file or assembly 'Microsoft.Web.Extensions'
When adding a new website to IIS it is possible that you receive the following error message when browsing to the site.

Select All Code:
Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

In my case the solution was to change the application mode the classic instead of integrated (Default). This can be done by going to IIS Manager > Application Pools > Select Site > Edit Application Pool > Basic Settings... and changing the Managed Pipeline mode to Classic.

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