Home > Automation, Hyper-V, Powershell, Virtualization, Win2012 > Lets remove some VM´s with PowerShell on Hyper-V 3 in Windows 2012

Lets remove some VM´s with PowerShell on Hyper-V 3 in Windows 2012

In the PowerCLI world there is a kind of evil oneliner to remove all VM´s from a datacenter, I was searching for something alike in the Hyper-V v3 world

The PowerCLI command is

Get-VM | %{Stop-VM $_ -Confirm:$false; Remove-VM $_ -DeletePermanently -Confirm:$false

And of course that is pure evil because the parameter -deletepermanently will remove not only the VM but also it´s files from the datastore, The % is to take care of each VM and in case the VM is running I will shut it down (otherwise if I only run like Get-VM | Stop-VM -Confirm:$false | Remove-VM -deletePermanently -Confirm:$false I will only remove the ones running, cause I will get an error on the others because I cannot change state to what it is already)

In Hyper-V and the powershell v3 It is not quite as easy but of course it can be done and don´t you dare use the gui ;-)

This approach requires that you have put your VM in a separate folder for each of them (or of course it will be clean in your default Hyper-V VM folder..)

The Remove-VM cmdlet does not allow you to actually remove the VM´s virtual hard disk and the folders (which in some times can become a bit messy after a while)

Here is my VM´s

And here is my folder

So if I remove one VM now with the Remove-VM TestVM1, this also requires that the VM is off.

And lets see in the folders what do we have

So to clean both VM´s and folder data I run all at once and this looks like this

Get-VM testvm* | %{ Stop-VM -VM $_ -Force; Remove-VM -vm $_ -Force ; Remove-Item -Path $_.Path -Recurse -Force}

And see in my VM´s folder how tidy and neat it is :-P

And as I started to describe in the top .. If you just use Get-VM | …  you will clean your Hyper-V host quick :-)

  1. June 13th, 2012 at 23:11 | #1

    Simple yet very, very powerfull… me like! :-)

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