Note We recommend that you evaluate each fix to determine whether it applies to your environment. If you determine that Failover Clusters in your environment may be affected by the problem(s) that a fix addresses, install the fix on each cluster node by using the procedures that are described in Knowledge Base article 174799: Patching Windows Server Failover Clusters.
Use the information in the "More information" section to help you determine whether a particular fix applies to the cluster. Before you install a particular fix, we recommend that you review the original Microsoft Knowledge Base (KB) article that describes the fix.
|Date when the hotfix was added||Knowledge Base article||Title||Component||Why we recommend this hotfix|
|January 22, 2015||3033918||Disk resource does not come online in Windows Server 2012 R2 or Windows Server 2008 R2-based failover cluster||Clusres.dll||Makes sure that chkdsk works correctly on clustered volumes.|
|November 19, 2014||2972254||Hyper-V virtual machines cannot be connected to sometimes when TCP connections reconnect in Windows||Clussvc.exe|
|Prevents connectivity issues between nodes.|
|July 23, 2014||2871803||0x0000007E" Stop error when you log off from a Windows Server 2008 R2 SP1-based failover cluster||Clusauthmgr.dll |
|Prevents a "blue screen" error when you log off Cluster Administrator. Available for individual download.|
|November 24, 2012||2786667||Validate simultaneous failover test fails when you run cluster validation tests on a multi-node failover cluster that is running Windows Server 2008 R2 SP1||Clusdisk.sys||Prevents validation failure to make sure that configuration is fully supported.|
|November 17, 2012||2524478||The network location profile changes from "Domain" to "Public" in Windows 7 or in Windows Server 2008 R2||Ncsi.dll |
|Prevents loss of Cluster communication.|
|April 25, 2012||2559392||The List Running Processes test fails when you run the Failover Cluster Validation Wizard on a Windows 7-based or Windows Server 2008 R2-based cluster node||Multiple Validation DLL’s||Prevents Cluster Validation failure. Passing validation is required to have a Supported Cluster configuration.|
|June 14, 2011||2545850||Users cannot access an IIS-hosted website after the computer password for the server is changed in Windows 7 or in Windows Server 2008 R2||Multiple Authentication DLL’s||Prevents CNO and VCO objects from failing to register in DNS because of Kerberos authentication failure after the computer password is changed.|
To see the latest list of hotfixes for Windows Server 2008 R2 Hyper-V configurations, see Hyper-V Update List for Windows Server 2008 R2 .