Server 2012 – Fails Installing .Net 3.5


KB ID 0000924 Dtd 07/13/14


I needed to add .Net 3.5 to a Windows Server for an application install, but when I added it as a 'feature' it failed.

.net fails on 2012

Installation of one or more roles, role services, or features failed. The source files cannot be found. Try installing the roles, role services, or features again in a new Add Roles and Features Wizard session, and on the Confirmation page of the wizard, click "Specify an alternate source path" to specify a valid location of the source files that are required for the installation. The location must be accessible by the computer account of the destination server.


1. Open a command Window (Run as Administrator)

Run cmd as administrator 2012

2. Insert the Server 2012 Install DVD >Execute the following command;

Dism /online /enable-feature /featurename:NetFx3 /All /Source:D:sourcessxs /LimitAccess

Where D: is the DVD Drive Letter

Manually Install .net 3.5

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Author: Migrated

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