Unable to Add VHDX to Hyper-V Virtual Machine in Windows Server 2012 Hyper-V

 

Just encountered this problem after fully patched Windows Server 2012 Hyper-V.

Scenario:-

• Running failover cluster with Hyper-V installed
• Created virtual machine and add virtual hard to the VM.
• Some virtual hard disk can add but some failed to virtual hard disk to the VM.
• Error message when add virtual hard disk:-

Solution

1. Found the solution, that we need to install with KB2836402 hotfix

2. Apply the hotfix

3. Reboot the Hyper-V host