SharePoint - pre-requisites they left out..

KB 2554876 - The SharePoint parsing process crashes in Windows Server 2008 R2
http://support.microsoft.com/kb/2554876/en-au

KB 2708075 - FIX: IIS 7.5 configurations are not updated when you use the ServerManager class to commit configuration changes in Windows 2008 R2
http://support.microsoft.com/kb/2708075/en-au

KB 2759112 - A hotfix is available for the .NET Framework 4.5 that resolves an ASP.NET race condition issue in Windows Server 2008 R2 – Download
http://support.microsoft.com/kb/2759112/en-au

KB 2765317 - A hotfix is available for the .NET Framework 4.5 that resolves an ASP.NET race condition issue in Windows Server 2012 – Download
http://support.microsoft.com/kb/2765317/en-au

http://office.microsoft.com/en-au/help/sharepoint-server-2013-known-issues-HA102919021.aspx