This video demonstrates the procedure to delete a Recovery Services Vault configured with Azure Backup and Azure Site Recovery using Azure portal and Powershell.
00:00 – Introduction
00:45 – Deletion using Portal
13:58 – Deletion using Powershell Script
Visit this link for vault deletion script: https://docs.microsoft.com/en-us/azure/backup/scripts/delete-recovery-services-vault
Documentation for vault deletion: https://docs.microsoft.com/en-us/azure/backup/backup-azure-delete-vault?tabs=portal
Publisher: Microsoft Azure
You can watch this video also at the source.