myuser@MeineVM:~$ sudo waagent -deprovision+user -force
WARNING! The waagent service will be stopped.
WARNING! Cached DHCP leases will be deleted.
WARNING! root password will be disabled. 
         You will not be able to login as root.
WARNING! /etc/resolv.conf will NOT be removed, this is a behavior 
         change to earlier versions of Ubuntu.
WARNING! myuser account and entire home directory will be deleted.
