You can disassociate a storage policy that is associated with a virtual machine and its hard disk.

Verify that you are connected to a vCenter Server system.

Verify that a virtual machine named Target-VM exists in the vCenter Server environment.

Verify that a storage policy is associated with the Target-VM virtual machine.

1

Get the Target-VM virtual machine and store it in the $vm variable.

$vm = Get-VM -Name 'Target-VM'
2

Get the hard disk associated with the $vm virtual machine and store it in the $hd variable.

$hd = Get-HardDisk -VM $vm
3

Disassociate all storage policies that are associated with the $vm virtual machine and the $hd hard disk.

Set-SpbmEntityConfiguration $vm, $hd -StoragePolicy $null