how to permanently disable ubuntu updates pop up & hide or remove Install Updates button pic included see below:
1 Answer
To disable the update notifier, just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:
gconftool -s --type bool /apps/update-notifier/auto_launch false
Note: Keep in mind that doing so won't keep your system updated with security and other important updates.
To disable updates, in terminal do:
sudo gedit /etc/apt/apt.conf.d/10periodic
When it opens change the "1" to "0" as shown in the image below, and
Then change the Automatically Check for Updates to "Never" as shown in the image below.
Source for the last part complements of Guillermo G.