Linda Octa

I was trying to install Microsoft® Visual C#® 2010 Express in Window Server 2008 R2 Standard (64-bit). In my installation i exclude the installation of Microsoft® SQL Server 2008 (64-bit). Half way during installation, I encounter this error: “You must use role management tool to install or configure Microsoft .net Framework 3.5″.

In order to continue the installation I need to enable the usage of Role Management Tool as requested:
Step 1. Start -> Administrative Tools -> Server Manager

Step 2. On the left hand side, click on Features

Step 3. On the right hand side, click on Add Features link

Step 4. Click on .NET Framework 3.5.1 Features checkbox and Add Features Wizard will be shown

Step 5. Click on Add Required Role Service button

Step 6. The .NET Framework 3.5.1 Features checkbox should be checked. Click on Next button.

Step 7. Once the Install button is enabled, click on the button to finish up the installation

Hope this help!