Recommended hotfixes, updates, and known solutions for Windows Server 2012 R2 Hyper-V environments

Applies to: Windows Server 2012 R2 Datacenter


This article documents recommended hotfixes, product updates, and known solutions that are currently available for Windows Server 2012 R2 Hyper-V environments.

More Information

The following Microsoft Knowledge Base articles describe the currently available fixes that are highly recommended for all Hyper V environments. These updates are considered important to install to make sure you experience the highest level of reliability.

TitleKnowledge Base Article
November 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R23000850
VMs may not get additional memory although they're set to use Dynamic Memory in Windows Server 2012 R23095308
"0x0000003B" or "0x0000007E" Stop error on a Windows-based computer that has 4K sector disks3027108
Live migration of virtual machine to another host fails on a Windows Server 2012 R2-based Hyper-V host server3049443
Old files are not removed after a migration of virtual machine storage in Windows 8.1 or Windows Server 2012 R23037313
Events 18210, 3041, and 1 are logged when Hyper-V replica is configured3050765
Shared Hyper-V virtual disk is inaccessible when it's located in Storage Spaces on a Windows Server 2012 R2-based computer3025091
"No host bus adapter is present" error when querying SAS cable issues in Windows Server 2012 R2 or Windows Server 20123018489
"An unrecoverable failure occurred inside the filter manager" error on a failover cluster node that hosts shared VHDx files3068444
You cannot upgrade Hyper-V integration components or back up Windows virtual machines3046826
Hyper-V host crashes and has errors when you perform a VM live migration in Windows 8.1 and Windows Server 2012 R23031598
"An error occurred while retrieving the list of servers" error when you create a protection group in Azure Site Recovery3060975
VMMS crashes when you perform live migration and request VM information at the same time in Windows Server 2012 R23020717
"STATUS_PURGE_FAILED" error when you perform VM replications by using SCVMM in Windows Server 2012 R23044457
Update to improve the backup of Hyper-V Integrated components in Hyper-V Server 2012 R23063283
"0x00000050" Stop error when Hyper-V host crashes in Windows Server 2012 R23036173
Hyper-V generation 2 virtual machines can't start with some pass-through disks in Windows Server 2012 R2 3102354
Network is corrupted between Guest OS and external network for VMs hosted on Windows 8.1 or Windows Server 2012 R23092604
Hyper-V guest may freeze when it is running failover cluster service together with shared VHDX in Windows Server 2012 R23139896
"0x00000001" Stop error when a shared VHDX file is accessed in Windows Server 2012 R2-based Hyper-V guest3141074
LBFO Dynamic Teaming mode may drop packets in Windows Server 2012 R23137691

Other known issues and solutions

Recommended hotfixes, updates, and known solutions for Windows Server 2012 R2 Hyper-V Network Virtualization (HNV) environments

Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters