On Windows 8, if you install Umbraco 5.1 and any other software you need ASP.NET 4.0 . After all the prerequisites installed if you try running aspnet_regiis -ir , you will get below information. But in Win8 - IIS 8 - default framewrok is .net framework 4.5 (also supports 3.5) .And you won't find 'ASP.NET 4.0' in the Application pool list. From the 'add application pool' - you have to choose .net 4.5 from the drop down . This will take care of Umbraco 5.1 install running from your IIS 8. If you have permission issues , add 'Modify' permission to IIS_IUSER . You can do this from IIS rightside menus or from the File explorer -> Right click on the file >select -property > select Security Tab > . ------ aspnet_regiis -ir install result. C:\Windows\Microsoft.NET\Framework\v4.0.30319>aspnet_regiis -ir Microsoft (R) ASP.NET RegIIS version 4.0.30319.17379 Administration utility to install and uninstall ASP.NET on the local machin...
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