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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Error while trying to install the .NET Framework. The installer returned the following error message. A fatal error occurred during installation

Error while trying to install the .NET Framework. The installer returned the following error message. A fatal error occurred during installation

Created by Malik Haider, last modified by MindTouch on Jun 23, 2016

Views: 8,145 Votes: 0 Revisions: 6

Overview

This article describes the issue when you upgrade Orion NPM and fail to install the .NET Framework. The installer returns with the following error message:

A fatal error occurred during installation 

Environment

NPM version 11.5.2 

 

Cause 

This issue occurs due to a previous installation failure that still has some old .NET issues found within the logs.

This might also be due to an  incomplete Windows Update.

Resolution

  1. Uninstall .Net 4 manually by going to Control Panel > Programs and features > Select Microsoft .Net Framework 4 Client profile > Uninstall.
  2. Repeat the steps above for Extended.

 

 

Reboot the Orion Server 
Downloaded .Net 4.0.3 

Install  once done  Reboot Orion Server  
Re run the Orion NPM 11.5.2 installer again the issue will be resolved. 

 

 

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