how windows update work?

May 15, 2017 at 22:07:49
Specs: widows 10, 2.2 GHz
I have windows 10 and it's updated. Sometimes windows updates and then when the computer reboots shows that message applying updates, and I noticed when has many updates takes longer to finish rebooting. I just installed an update manually and also rebooted manually and did not show applying updates. My question is sometimes shows and sometimes does not?

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#1
May 16, 2017 at 01:31:06
Most Windows updates are either security patches or bug fixes. I don't think there are any updates that visually improve the "speed" of your PC.
So I don't see any real meaning in measuring the performance of your system before and after an update.

Just like any closed source software, you just have to trust in Microsoft and take the updates at face value!


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#2
May 16, 2017 at 06:22:12
My concern is to find out when the computer applies updates at rebooting and why? If the computer reboots right away I would reboot, if the computer does not apply updates I wont reboot because it might take few seconds, minutes, sometimes hours. A message comes out like this "Please do not power off or unplug your machine"

message edited by noslig199


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#3
May 16, 2017 at 14:20:41
Whether updates require a reboot or not depends on the update. Most small security updates do not require this but cumulative updates and feature updates do. When it actually does this is part of your Windows Update settings, so look in there (settings cog > Update & Security). You can always manually reboot if it shows something is waiting. It is not "how many" updates that dictates this but "what they are". On the 2nd Tuesday of the month there are often a lot of updates and this includes some bigger ones.

Some updates make registry changes that can only be picked up when the computer is restarted, or they require file swaps that cannot take place while Windows is running. All this is a fact of life and there is nothing you can do about it.

There are a lot of updates on Windows 10 - a cross we have to bear.

Always pop back and let us know the outcome - thanks


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#4
May 16, 2017 at 19:53:13
I believe one reason an update is applied at the next boot
instead of immediately is when an executable file which is
running at the time of installation needs to be replaced.
Windows doesn't permit a running file to be modified.
If a file isn't in use, then it can be replaced immediately.

-- Jeff, in Minneapolis


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#5
May 16, 2017 at 20:53:27
More #3 than #4
In essence (as stated) there are (lets call them) 'simpler' updates that do not require a restart to be competed. There are updates that require a core component or a registry entry to be replaced or modified. If either or both of these are involved in the update then the system must be updated for it to be completed. Running processes often can be shut down, replaced, and restarted without Windows being restarted except when the process is essential to Windows running or if the updater itself is being updated.
When Windows needs to be restarted, it will tell you. In fact if you tell it that you will restart later and walk away for five minutes, you will probably find that it restarted anyway when you get back.

You have to be a little bit crazy to keep you from going insane.


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