topic Re: Windows Server 2012 R2 .NET Framework 3.5.1 Installation Problems Due to WSUS in ArcGIS Enterprise Questions https://community.esri.com/t5/arcgis-enterprise-questions/windows-server-2012-r2-net-framework-3-5-1/m-p/572482#M22104 <HTML><HEAD></HEAD><BODY><SPAN>Thanks, good info.&nbsp; I had problems installing on 2012 because of .net 3.5.1, can't remember how I got it going</SPAN></BODY></HTML> Thu, 08 May 2014 18:02:08 GMT BubbaHey 2014-05-08T18:02:08Z Windows Server 2012 R2 .NET Framework 3.5.1 Installation Problems Due to WSUS https://community.esri.com/t5/arcgis-enterprise-questions/windows-server-2012-r2-net-framework-3-5-1/m-p/572481#M22103 <HTML><HEAD></HEAD><BODY><SPAN>I just wanted to post what I learned from trying to install the .NET Framework 3.5.1 on Windows Server 2012 R2.&nbsp; Apparently, Windows Server 2012 and Windows 8 use a concept called Features on Demand, where the source files for Windows features are not installed on the machine by default.&nbsp; Thus, you either have to use Windows Update, or provide a WIM image file or a side-by-side (SxS) store.</SPAN><BR /><BR /><SPAN>Following most help on the web, I tried to use the Add Roles and Features Wizard and specify a source file location pointing to a copy of the sources/sxs folder in the installation media.&nbsp; I still continued to get errors, even when using DISM and following various troubleshooting procedures.&nbsp; It appears that having a Windows Server Update Service (WSUS) configured was causing the problem.&nbsp; Once I made the connection, I was able to find the following articles.&nbsp; The second article helps explain the concepts very well.</SPAN><BR /><BR /><A href="http://support.microsoft.com/kb/2734782">http://support.microsoft.com/kb/2734782</A><BR /><A href="http://blogs.technet.com/b/askcore/archive/2012/05/14/windows-8-and-net-framework-3-5.aspx">http://blogs.technet.com/b/askcore/archive/2012/05/14/windows-8-and-net-framework-3-5.aspx</A><BR /><BR /><SPAN>By configuring the group policy setting </SPAN><STRONG>Specify settings for optional component installation and component repair</STRONG><SPAN>, I was able to install the .NET Framework 3.5.1 through the Add Roles and Features Wizard using both Windows Update or my sources/sxs folder from the installation media.</SPAN><BR /><BR /><SPAN>So, if your system administrator uses WSUS to manage the updates installed on your server, try reading the links above if you can't get .NET Framework 3.5.1 or other Windows features installed.</SPAN></BODY></HTML> Tue, 06 May 2014 21:05:59 GMT https://community.esri.com/t5/arcgis-enterprise-questions/windows-server-2012-r2-net-framework-3-5-1/m-p/572481#M22103 NathanHeick 2014-05-06T21:05:59Z Re: Windows Server 2012 R2 .NET Framework 3.5.1 Installation Problems Due to WSUS https://community.esri.com/t5/arcgis-enterprise-questions/windows-server-2012-r2-net-framework-3-5-1/m-p/572482#M22104 <HTML><HEAD></HEAD><BODY><SPAN>Thanks, good info.&nbsp; I had problems installing on 2012 because of .net 3.5.1, can't remember how I got it going</SPAN></BODY></HTML> Thu, 08 May 2014 18:02:08 GMT https://community.esri.com/t5/arcgis-enterprise-questions/windows-server-2012-r2-net-framework-3-5-1/m-p/572482#M22104 BubbaHey 2014-05-08T18:02:08Z