I try to install Microsoft DPM 2012 r2 on a windows 2008 R2 with SP1. It keeps asking me to install Windows Management Framework 3.

Based on Microsoft website, there are the requirements:

Microsoft .NET Framework 4.0

• Microsoft Visual C++ 2008 Redistributable Microsoft Visual C++ 2008 Redistributable
• Windows PowerShell 3.0
• Windows Installer 4.5 or later versions
• Windows Single Instance Store (SIS)
• Microsoft Application Error Reporting

  Any way, I download and installed Windows6.1-KB2506143-x64.msu (I believe this is WMF 3). But that doesn't fix the problem. Why?

On the DPM server, .Net 3.5SP1 is required. Setup will not be able to add this feature on Windows Server 2012.  Open an elevated PowerShell session (run as an Administrator) and execute the following:

Add-WindowsFeature NET-Framework-Core

***Note .NET 3.5 source files are removed from the WS2012 R2 operating system.  You might require supplying a source path to the installation media for Windows Server 2012 R2, such as:  

Add-WindowsFeature NET-Framework-Core source D:\sources\sxs

The following prerequisites are required for installation:

• Microsoft .NET Framework 3.5 with Service Pack 1 (SP1)
• Microsoft Visual C++ 2008 Redistributable
• Windows PowerShell 2.0
• Windows Installer 4.5 or later versions
• Windows Single Instance Store (SIS)
• Microsoft Application Error Reporting

DPM 2012 R2 QuickStart Deployment Guide

System requirements for System Center 20

Thank you for the help. However,

1. I am running windows 2008 R2 with SP1 not windows 2012 R2.

2.  have installed .Net 3.5

3. "Add-WindowsFeature NET-Framework-Core" doesn't work

PS C:\Windows\system32> Add-WindowsFeature NET-Framework-Core
The term 'Add-WindowsFeature' is not recognized as the name of a cmdlet, function, script file, or operable program. Ch
eck the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:19
+ Add-WindowsFeature <<<<  NET-Framework-Core
    + CategoryInfo          : ObjectNotFound: (Add-WindowsFeature:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

I fixed this problem by login administrator account instead of domain admins account. Not sure why.

Thank you!

As prerequisites for installing DPM 2012 R2 you need power shell 3.0 which is part of Windows Management Framework 3.0 for that you need to install this update.

https://www.microsoft.com/en-us/download/details.aspx?id=34595