system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What happens when I power off or unplug my computer while it's installing an update.
gpt
I like to think of it like this:

Lets say you are fixing a roof on a house (you are the only one that can do this), right after you tear off the roof, but before you you start rebuilding the roof, you get shot. Damn no one can use that house, as you are the only one that could fix the roof.

* "You" -- Update Program
* "house" -- The computer 
* "roof" -- A Program or other thing being updated with in the computer (OS or otherwise) 
* "get shot" -- Power turned off

If there is luck involved, you might turn into a zombie and finish the roof. Thus the house can be used again. But most of the time you are in the ground, and the house has no roof.

* "Zombie" -- Update program restarting itself upon reboot.