> You should have stopped the relevant timer unit, not the service unit that the timer starts. FTFY. Helps keeping them apart to not use the same word for both

> You should have stopped the relevant timer unit, not the service unit that the timer starts. FTFY. Helps keeping them apart to not use the same word for both ;) systemctl disable --now unattended-upgrades.timer; systemctl disable --now unattended-upgrades.service No need to uninstall or mask.