$subscription = "[Subscription here]"
Select-AzureSubscription -SubscriptionName $subscription
$cloudservice = '[Cloud Service Here]'
Get-AzureVM -ServiceName $cloudservice | foreach {
$path = 'c:\vms' + $_.Name + '.xml'
Export-AzureVM -ServiceName $cloudservice -Name $_.Name -Path $path
}
# Faster way of removing all VMs while keeping the cloud service/DNS name
#Remove-AzureDeployment -ServiceName $cloudservice -Slot Production -Force