Post SP1 Hotfixes for Windows 2008 R2 SP1 with Failover Clustering and Hyper-V

In addition to my previous blog around the list of recommended hotfixes for SCVMM, Hyper-V and Failover Clustering, I do personally maintain currently a list with all post (recommended/required/regular….) SP1 released hotfixes especially with focus on Failover Cluster and Hyper-V:
https://ramazancan.wordpress.com/2010/11/21/recommended-hotfixes-scvmm-hyper-v/
KB2528357 – Nonpaged pool leak when you disable and enable some storage controllers in Windows 7 or in Windows Server 2008 R2
http://support.microsoft.com/kb/2528357
KB2568088 – Virtual machine does not start on a computer that has an AMD CPU that supports the AVX feature and that is running Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2568088
KB2547551 – Hyper-V Export function consumes all available memory in Windows Server 2008 or in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2547551
KB2550569 – "0x20001" Stop error when you start a Linux VM in Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2550569
KB2504962 – Dynamic Memory allocation in a Virtual Machine does not change although there is available memory on the host
http://support.microsoft.com/kb/2504962
KB2534356 – Some CPU cores are parked while other active CPU cores have a heavy workload in Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2534356
KB2496034 – Cluster service stops when an error occurs in the registry replication process of a failover cluster in Windows Server 2008 R2 (SP1) or in Windows Server 2008
http://support.microsoft.com/kb/2496034
KB2549448 – Cluster service still uses the default time-out value after you configure the regroup time-out setting in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2549448
KB2549472 – Cluster node cannot rejoin the cluster after the node is restarted or removed from the cluster in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2549472
KB2446607 – You cannot enable BitLocker on a disk volume in Windows Server 2008 R2 (SP1) if the computer is a failover cluster node
http://support.microsoft.com/kb/2446607
KB2462576 – The NFS share cannot be brought online in Windows Server 2008 R2 (SP1) when you try to create the NFS share as a cluster resource on a third-party storage disk
http://support.microsoft.com/kb/2462576
KB2485543 – You cannot access or mount a Windows Server 2008 R2 (SP1) based NFS share after a failover if the NFS share uses Krb5 or Krb5i authentication
http://support.microsoft.com/kb/2485543
KB2545685 – Recommended hotfixes and updates for Windows Server 2008 R2 SP1 Failover Clusters
http://support.microsoft.com/kb/2545685
KB2531907 – Validate SCSI Device Vital Product Data (VPD) test fails after you install Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2531907
KB2494162 – The Cluster service stops unexpectedly on a Windows Server 2008 R2 (SP1) failover cluster node when you perform multiple backup operations in parallel on a cluster shared volume
http://support.microsoft.com/kb/2494162
KB2552040 – A Windows Server 2008 R2 (SP1) failover cluster loses quorum when an asymmetric communication failure occurs
http://support.microsoft.com/kb/2552040
KB2494036 – A hotfix is available to let you configure a cluster node that does not have quorum votes in Windows Server 2008 and in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2494036
KB2496089 – The Hyper-V Virtual Machine Management service stops responding intermittently when the service is stopped in Windows Server 2008 R2 http://support.microsoft.com/kb/2496089
KB2521220 – "0x0000001E" Stop error when you perform disk I/O-intensive operations on dynamic disks in Windows Server 2008 or in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2521220
KB2512715 – Validate Operating System Installation Option test may identify Windows Server 2008 R2 Server Core installation type incorrectly in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2512715
KB2501763 – Read-only pass-through disk after you add the disk to a highly available VM in a Windows Server 2008 R2 SP1 failover cluster
http://support.microsoft.com/kb/2501763
KB2520235 – "0x0000009E" Stop error when you add an extra storage disk to a failover cluster in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2520235
KB2529956 – Windows Server 2008 R2 (SP1) installation may hang if more than 64 logical processors are active
http://support.microsoft.com/kb/2529956
KB2545227 – Event ID 10 is logged in the Application log after you install Service Pack 1 for Windows 7 or Windows Server 2008 R2
http://support.microsoft.com/kb/2545227
KB2517329 – Performance decreases in Windows Server 2008 R2 (SP1) when the Hyper-V role is installed on a computer that uses Intel Westmere or Sandy Bridge processors
http://support.microsoft.com/kb/2517329/en-us
KB2532917 – Hyper-V Virtual Machines Exhibit Slow Startup and Shutdown
http://support.microsoft.com/kb/2532917
KB2494016 – Stop error 0x0000007a occurs on a virtual machine that is running on a Windows Server 2008 R2-based failover cluster with a cluster shared volume, and the state of the CSV is switched to redirected access
http://support.microsoft.com/kb/2494016/en-us
KB2263829 – The network connection of a running Hyper-V virtual machine may be lost under heavy outgoing network traffic on a computer that is running Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2263829/en-us
KB2485986 – An update is available for Hyper-V Best Practices Analyzer for Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2485986/en-us
KB2494162 – The Cluster service stops unexpectedly on a Windows Server 2008 R2 (SP1) failover cluster node when you perform multiple backup operations in parallel on a cluster shared volume
http://support.microsoft.com/kb/2494162/en-us
KB2521348 – A virtual machine online backup fails in Windows Server 2008 R2 (SP1) when the SAN policy is set to "Offline All"
http://support.microsoft.com/kb/2521348
KB2519736 – Stop error message in Windows Server 2008 R2 SP1 or in Windows 7 SP1: "STOP: 0x0000007F"
http://support.microsoft.com/kb/2519736
KB980915 – A long time delay occurs when you reconnect an IPSec connection from a computer that is running Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2 (SP1) (in IPSEC scenarios)
http://support.microsoft.com/kb/980915
RemoteFX specific:
KB2501816 – "Display driver stopped responding but has recovered" error in a Windows 7 SP1-based VM that has a RemoteFX video adapter
http://support.microsoft.com/kb/2501816
KB2505030 – A RemoteFX VM does not start, and you receive the error "Microsoft Synthetic 3D Display Controller: Failed to Power on" when you try to add the RemoteFX 3D Video adapter from Hyper-V settings
http://support.microsoft.com/kb/2505030
KB2506391 – In Windows Server 2008 R2 SP1, RemoteFX virtual machines cannot start, and you receive an error: "Failed to Power on with Error ‘Insufficient system resources exist to complete the requested service’"
http://support.microsoft.com/kb/2506391
KB2505694 – Error message when you try to start a RemoteFX-enabled virtual machine: "Microsoft Synthetic 3D Display Controller : Failed to Power on with Error ‘Insufficient system resources exist to complete the requested service’"
http://support.microsoft.com/kb/2505694
KB2506417 – New and existing RemoteFX-enabled virtual machines do not start on a domain controller that is running the Remote Desktop Virtualization Host service in Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2506417
KB2506434 – In Windows Server 2008 R2 SP1, RemoteFX VMs cannot start if the Hyper-V server display adapter has been changed
http://support.microsoft.com/kb/2506434
KB2519946 – Timeout Detection and Recovery (TDR) randomly occurs in a virtual machine that uses the RemoteFX feature in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2519946
KB2523676 – GPU is not accessed leads to some VMs that use the RemoteFX feature to not start in Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2523676
KB2533362 – Hyper-V settings hang after installing RemoteFX on Windows 2008 R2 SP1
http://support.microsoft.com/kb/2533362
MPIO specific:
KB2277904 – You cannot access an MPIO-controlled storage device in Windows Server 2008 R2 (SP1) after you send the "IOCTL_MPIO_PASS_THROUGH_PATH_DIRECT" control code that has an invalid MPIO path ID
http://support.microsoft.com/kb/2277904
KB2406705 – Some I/O requests to a storage device fail on a fault-tolerant system that is running Windows Server 2008 or Windows Server 2008 R2 (SP1) when you perform a surprise removal of one path to the storage device
http://support.microsoft.com/kb/2406705
KB2460971 – MPIO failover fails on a computer that is running Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2460971
KB2511962 – "0x000000D1" Stop error occurs in the Mpio.sys driver in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2511962
KB2522766 – The MPIO driver fails over all paths incorrectly when a transient single failure occurs in Windows Server 2008 or in Windows Server 2008 R2 (SP1)
http://support.microsoft.com/kb/2522766/