apt - How can I stop the updates notifier box from appearing? - Ask Ubuntu

this question has answer here:

• how can check if automatic updates enabled? 4 answers
• how disable update manager popup? 13 answers

note future users come across question

this question has been tagged possible duplicate of

• how can check if automatic updates enabled?

that question whole process of having os apt-get update , apt-get upgrade packages automatically - not popup manager window.
question duplicate of this:

• how disable update manager popup?

it turns out update manager popup cannot managed through apt's configuration files, acts independent daemon , needs managed separately.

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every morning when log install of ubuntu 16.04.1 this:

i don't want box appear, rather handle updating process manually.

i have following configuration:

file: /etc/apt/conf.d/10periodic

apt::periodic::update-package-lists "0"; apt::periodic::download-upgradeable-packages "0"; apt::periodic::autocleaninterval "0"; // try , turn off autoupating apt::periodic::enable "0"; 

file: /etc/apt/conf.d/20auto-upgrades

apt::periodic::update-package-lists "0"; apt::periodic::unattended-upgrade "0"; 

my attempt discover responsible firing automatic update system

man apt.conf states:

periodic , archives options
apt::periodic , apt::archives groups of options configure behavior of
apt periodic updates, done /etc/cron.daily/apt script.
see top of script brief documentation of these options.

it looks has been replaced /etc/cron.daily/apt-compat mixes times abit everyones ubuntu doesn't try update @ once calls:

/usr/lib/apt/apt.systemd.daily 

/usr/lib/apt/apt.systemd.daily shell script starts comment:

this file understands following apt configuration variables:
values here default.
create /etc/apt/apt.conf.d/10periodic file set preference.

so following advice entered this

    // try , turn off autoupating     apt::periodic::enable "0"; 

into /etc/apt/apt.conf.d/10periodic can see config listing above. yet still getting notification...

possible solutions can think of

• the comment // try , turn off autoupating may causing parse error of config file, causing apt ignore entire file?
• unlinking or commenting out /etc/cron.daily/apt-compat ?

how can disable update notifier box?