Failed to install Microsoft .NET Framework

Article ID: INS0015 The Commvault software installation program failed to install the .NET Framework software on Windows Server 2008 R2 and Microsoft Hyper-V Server 2008 R2 computers.


During the installation of Commvault software, the following message is displayed:

Failed to install Microsoft .NET Framework.


The Microsoft .NET Framework 4.0 Core version is not installed on the computer.


  1. Install the Microsoft .NET Framework 4.0 Core version from the Microsoft website.
  2. Reboot the computer, then retry the installation.