A large number of users have reported encountering the same error message. It seems that this issue is most commonly found in servers running Server 2012 R2.  Here is what one user on Microsoft Technet forums had to say about his issue: Because we know how important it is to be able to modify and add new roles and features to your Server 2012 R2 system, in today’s article we will explore some of the best troubleshooting methods available. Please follow the steps presented here carefully and in the order that they were written. Also, it is recommended that you try to see if the issue is fixed after each of the methods. This will allow you to find the least invasive solution to your issue, without exposing your system to any danger.

Server execution failed error when adding roles and features

1. Run SFC command inside PowerShell (Admin)

2. Run DISM command inside PowerShell (Admin)

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3. Reboot your server to fix the Server execution failed error

In some cases, users have reported that they fixed this issue by simply restarting their server. This error can also be caused by not running your Server 2012 R2 with the latest updates. The restart performed at this step will allow your system to install the necessary updates.

4. Perform a repair install using the root installer media

If all of the above methods failed, you will need to connect your installer media to your server and run a repair install. Even though this might mean that you need to reconfigure your server, it will allow you to get rid of the error message. We hope this guide helped you get rid of the error Server execution failed while adding roles and features inside the wizard. Please feel free to let us know if it did by using the comment section below.

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