This script allow you to use one command to disable admin account:

You can use it from the Terminal inside Mikrotik.

You can access customer CPE by going to wireless > registration right click on client CPE field and choose MAC Telnet from the list.

Login as admin, no password is required(Default)

user set admin disabled=yes
user pr

/user { {… add name=x password=y group=write {… add name=y password=z group=read {… print {… }