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

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

Applies to:   Windows Server 2012 R2
Original KB number:   3135020

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.

Title Knowledge Base Article
November 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 3000850
VMs may not get additional memory although they're set to use Dynamic Memory in Windows Server 2012 R2 3095308
0x0000003B or 0x0000007E Stop error on a Windows-based computer that has 4K sector disks 3027108
Live migration of virtual machine to another host fails on a Windows Server 2012 R2-based Hyper-V host server 3049443
Old files are not removed after a migration of virtual machine storage in Windows 8.1 or Windows Server 2012 R2 3037313
Events 18210, 3041, and 1 are logged when Hyper-V replica is configured 3050765
Shared Hyper-V virtual disk is inaccessible when it's located in Storage Spaces on a Windows Server 2012 R2-based computer 3025091
Error when querying SAS cable issues in Windows Server 2012 R2 or Windows Server 2012: No host bus adapter is present 3018489
Error on a failover cluster node that hosts shared VHDx files: An unrecoverable failure occurred inside the filter manager 3068444
You cannot upgrade Hyper-V integration components or back up Windows virtual machines 3046826
Hyper-V host crashes and has errors when you perform a VM live migration in Windows 8.1 and Windows Server 2012 R2 3031598
Error when you create a protection group in Azure Site Recovery: An error occurred while retrieving the list of servers 3060975
VMMS crashes when you perform live migration and request VM information at the same time in Windows Server 2012 R2 3020717
STATUS_PURGE_FAILED error when you perform VM replications by using SCVMM in Windows Server 2012 R2 3044457
Update to improve the backup of Hyper-V Integrated components in Hyper-V Server 2012 R2 3063283
0x00000050 Stop error when Hyper-V host crashes in Windows Server 2012 R2 3036173
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 R2 3092604
Hyper-V guest may freeze when it is running failover cluster service together with shared VHDX in Windows Server 2012 R2 3139896
0x00000001 Stop error when a shared VHDX file is accessed in Windows Server 2012 R2-based Hyper-V guest 3141074
LBFO Dynamic Teaming mode may drop packets in Windows Server 2012 R2 3137691

Other known issues and solutions