Hyper-V Issues Resolved by Microsoft Windows Server 2008 Service Pack 2

Error message when you try to start a Hyper-V virtual machine on a Windows Server 2008-based or Windows Vista-based computer that uses the NUMA architecture: "An error occurred while attempting to change the state of virtual machine VMNAME".

http://support.microsoft.com/kb/953585

Windows Server 2008 may restart unexpectedly when you open the Hyper-V manager console to manage virtual machines.

http://support.microsoft.com/kb/959403

A memory leak occurs in the Vmwp.exe and Vmms.exe processes on a Windows Server 2008-based computer that has the Hyper-V role enabled.

http://support.microsoft.com/kb/961730

Hyper-V performance counters in Windows Server 2008 are displayed incorrectly or report incorrect data when you remotely query the counters from a Windows Server 2003-based computer.

http://support.microsoft.com/kb/967124

Description of the Hyper-V update for issues that may occur when you manage the Hyper-V role on the 64-bit editions of Windows Server 2008 by using SCVMM.

http://support.microsoft.com/kb/956589

Windows Server 2008 Hyper-V VSS writer is not used during a backup job because of corrupted or invalid virtual machine configuration files.

http://support.microsoft.com/kb/956697

A Hyper-V update is available to increase the number of logical processors and virtual machines on a Windows Server 2008 x64-based computer.

http://support.microsoft.com/kb/956710

Stop error message on a Windows Server 2008-based computer that has the Hyper-V role installed: "STOP 0x0000001A".

http://support.microsoft.com/kb/957967

Virtual machine backup operations fail in Windows Server 2008 when Hyper-V virtual machine files are saved on a volume that is mounted on a failover cluster by using a volume GUID.

http://support.microsoft.com/kb/958184

An update is available for Windows Server 2008-based computers to address issues with backing up and restoring Hyper-V virtual machines.

http://support.microsoft.com/kb/959962

The IRET and IRETD instructions do not support the Nested Task (NT) flag in protected mode in a Windows Server 2008 Hyper-V environment.

http://support.microsoft.com/kb/960578

The AltGr key does not work on a Linux virtual machine on a Windows Server 2008-based server that has the Hyper-V role enabled.

http://support.microsoft.com/kb/963709

You cannot connect to a virtual machine when the Windows Server 2008 Hyper-V VMMS certificate has expired.

http://support.microsoft.com/kb/967902

The classic Start menu is not displayed correctly in Windows Server 2008 without Hyper-V

http://support.microsoft.com/kb/950612

Increased functionality and virtual machine control in the Windows Server 2008 Failover Cluster Management console for the Hyper-V role.

http://support.microsoft.com/kb/951308

Windows Server 2008 Hyper-V virtual machines generate a Stop error when NLB is configured or when the NLB cluster does not converge as expected.

http://support.microsoft.com/kb/953828

You cannot configure a Hyper-V virtual machine by using Windows Server 2008 Failover Clustering when the virtual machine uses a storage device that is managed by a third-party clustered file system or a third-party replication solution.

http://support.microsoft.com/kb/958065

Windows Server 2008 Hyper-V systems restart unexpectedly and you receive a 0x1000007E Stop error code when you mount a VHD file.

http://support.microsoft.com/kb/959766

Error message when you back up a Windows Server 2003-based virtual machine on a Windows Server 2008 Hyper-V-based computer: "GetWriterStatus FAILED for Selected writer [Microsoft Hyper-V VSS Writer], writer is in state [9] [VSS_WS_FAILED_AT_FREEZE]".

http://support.microsoft.com/kb/959978

You receive a "0x0000007E" Stop error on Windows Server 2008-based computers that host Hyper-V virtual machines when you use the Hyper-V writer to back up virtual machines.

http://support.microsoft.com/kb/960038