Is there a reason why updates stick

This
System Specs - Fill in at Ten Forums
as the opening paragraph explains
This tutorial will show you how to fill out your system specs at Ten Forums which will enable other members to assist you more quickly and efficiently.

would be of great advantage in helping on this thread anmd others you may start.
Your present spec
Laptop OS Win 10 is of no help whatsoever.

To address the actual problem on what can until you provide the spec, be only very general advice
1. Is the connection generally OK or slow, on general browsing
2. What AntiVirus is in use
3. Does this apply to all updates or only when there is a large number of updates
4. When it is updating, are you also using the browser or is the only internet activity the updates.

I did not post this for technical reasons

I am sorry I do not understand. I thought you were asking for help with the apparent sticking and therefore slowness of updates
The reason MAY be software on the computer.
This detail below was not included on your opening post

I am on win10 pro and have the same problem on three pcs it happens on major updates

I asked for some spec of the computer in an effort to get on the starting block to helping you.
Updates can hang at any percentage generally it depends on the load on the update servers and of course the available speed of your connection.

Additionally a relevant aspect is are the updates hanging on download OR on install

Good luck with it, perhaps someone else will offer help or whatever it is you want

I've been seeing the same thing on 5 Desktops and 5 Notebooks running Home and Pro. It's never been a problem and I'm not concerned by the time involved as they always finish, attribute it to a combination of how many Users are accessing the Servers, what those Users have for connections and bandwidth in use which in my case is 25Mbps Wireless DSL.