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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