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I have 4 hyper-v servers running windows server 2012 R2 that they are in a cluster. I want to create a new virtual machine but i get an error that "failed to create the virtual hard disk",right after i click on finish the virtual machine is created but not in cluster i see my machine from my hyper-v manager not from failover cluster manager. I have tried to create this VM on another hyper servers too and i also have created hard disk on another path but i still get the error can someone please help me in this case.

t.khatibi
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    Here are some approaches: https://serverfault.com/questions/905480/hyper-v-create-virtual-machine-operation-failed – marsh-wiggle Nov 27 '18 at 09:07
  • Seconded. Also check the thread. https://social.technet.microsoft.com/Forums/windowsserver/en-US/57681dfd-c2e2-49cc-aac9-6fe8572825ec/unable-to-create-virtual-hard-disks-on-drives-other-than-c?forum=winserverhyperv Probably the problem is within storage. Ensure you choosing right storage while creating the VM. – A.Newgate Nov 27 '18 at 09:33

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I had the same issue and was able to create the VM.... Check the File System format of the disk you use to create V-Disk, It must be compatible with the OS disk format (e.g. FAT32 or NTFS)... Windows Server used NTFS format, so make sure you format whatever drive to NTFS.. I hope this helps.

Dan

Dan
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