What’s New in Windows Server 2012 R2


What’s New


  • Prevent data corruption during power failure.
  • sessions per target has increased to 544, and logical units per target has increased to 256.


  • Support for Hyper-V Live Migration over SMB
  • Support for using shared VHDX files as shared storage for guest clustering
  • improved SMB bandwidth management
  • Support for multiple SMB instances on a Scale-Out File Server
  • Automatic rebalancing of Scale-Out File Server clients


PowerShell cmdlet scripting

Active Directory

Working anywhere approach, access protected data, multi-factor authentication


  • Windows PowerShell module for DFS Replication
  • DFS Replication WMI provider
  • Database cloning for initial sync
  • Cross-file RDC disable
  • Database corruption recovery
  • Preserved file restoration
  • File staging tuning


DNS suffix based policies

DNS PTR registration options

MSCS Cluster

  • Virtual machine network health detection
  • Virtual machine drain on shutdown
  • Shared virtual hard disk (for guest clusters)
  • Deploy a cluster without network names in Active Directory Domain Services
  • Dynamic witness
  • Force quorum resiliency
  • Tie breaker for 50% node split
  • Configure the Global Update Manager mode
  • Turn off IPsec encryption for inter-node cluster communication
  • Cluster dashboard


Policy Caching

Item-Level Targeting,


  • Shared virtual hard disk
  • Storage Quality of Service
  • Virtual machine generation
  • Enhanced session mode
  • Automatic Virtual Machine Activation

IP Address Management (IPAM)

  • Role based access control
  • Virtual address space management
  • External database support
  • Upgrade and migration support

Supported Upgrade Path



Windows Server 2008 R2 Web, Datacenter or enterprise with SP1

Windows Server 2012 R2 Datacenter, standard

Windows Server 2012 Standard, datacenter

Windows Server 2012 R2 Standard or Windows Server 2012 R2 Datacenter

Hyper-V Server 2012

Hyper-V Server 2012 R2

In-place upgrade of the following is unsupported:

  • from 32-bit to 64-bit architectures
  • from one language to another
  • from one build type to another (fre to chk, for example)
  • Upgrades from pre-release versions of Windows Server 2012 R2 Preview are not supported. Perform a clean installation to Windows Server 2012.
  • switch from a Server Core installation to the Server with a GUI mode

Feature Removed or Deprecated in Windows Server 2012 R2

Removed features


File Backup and Restore

File History feature

System Image Backup

Reset your PC

Drivers for tape drives

Use manufacturer drivers

Creation of recovery disk on CD or DVD

Use the Recovery Disk to USB feature

Windows Authorization Manager (AzMan)

use new management tools for virtual machine

Active Directory Rights Management Services (AD RMS) SDK


The Application Server role

Use features and roles

IIS CertObj COM interface





Use PowerShell

Mount-IscsiVirtualDiskSnapshot, Dismount-IscsiVirtualDiskSnapshot

Use PowerShell


Use PowerShell


NFS 3 or NFS4

Network Access Protection (NAP)

Windows Web Application Proxy

Server for Network Information Services (NIS) Tools

Use native LDAP, Samba client, Kerberos

SMB 1.0


Telnet server

Remote desktop

Windows Identity Foundation (WIF) 3.5

Use WIF 4.5 and .net framework 4.5

SQL lite

SQL LocalDb

WMI version 1

WMI version 2


Release Notes: Important Issues in Windows Server 2012 R2 Preview

System Requirements

What’s New

1 thought on “What’s New in Windows Server 2012 R2

  1. Pingback: Windows Server 2012 R2—First Look | Blog by Raihan Al-Beruni

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