Sometimes you find yourself in a situation, where you need to change the assigned Region or Vnet on a VM in Azure.
There is a very simple and fast way of achieving this.
By deleting the server, and assigning the same virtual disk to a new VM connected to the correct Vnet.
Go to the Virtual Machine in Azure management portal and Delete the server ! – Important to know that when you delete the VM – it will ask you if you want to keep the virtual disk, then the actual virtual disk will be available even after the VM is deleted.