-
Get the Recovery services vault
$vault = Get-AzureRmRecoveryServicesVault -Name "ContosoVault"
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Delete the vault
Remove-AzureRmRecoveryServicesVault -Vault $vault
Warning
Use the above command with utmost caution since if you delete any vault by mistake, you will lose all the data. This is a permanent action and there is no way to reverse it.