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Windows 7: Efficiency; download and update at the same time

28 Nov 2013   #1
thx1139

Win 7 Home Premium (OEM) - Install date: 02-2010
 
 
Efficiency; download and update at the same time

I just installed Windows 7 on a new HDD in my laptop. The first thing I did after connecting to the Internet was to initiate Windows Update. It's now downloading 140 updates which will commence sequential installation after the download is complete. I'd like to know why the first update doesn't install while the second is downloading (and so on). I think that would be more time efficient and leave my laptop vulnerable for a shorter period of time.


My System SpecsSystem Spec
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28 Nov 2013   #2
NoelDP

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
 
 

There are a number of reasons why that will never happen.

1) Windows updates download based on server availability, rather than in any particular order, although the order can be tweaked a little by unchecking unwanted updates.
2) Windows Updates are downloaded installed using Component Based servicing - and some components may not be available for some reason at any given time.
3) each update has its own requirements for the existing installation before it can even attempt to install itself - and this is an almost unbreakable rule, by design.

Thus, while the order of download is pretty much semi-random, the order of install is a tree/branch process, such that certain updates MUST be installed first,, then others, etc..
Each update belongs to a particular branch on the tree, and this may affect later updates - even blocking ones that have already been downloaded.

Downloading and installing en-block also reduces the number of necessary reboots, as the installation order is optimised to allow as many installations as possible in the same session - installing in the order of download would cause may updates to demand a reboot which would otherwise be hidden within the mass-update session. We see this effect when we pick-and-choose updates from the available list for install, where some will happily install, and some fail, demanding a reboot prior, or another update be installed first.


In short - it ain't never gonna happen, both by design, and by necessity, and by long-term efficiency.
My System SpecsSystem Spec
29 Nov 2013   #3
thx1139

Win 7 Home Premium (OEM) - Install date: 02-2010
 
 

Okay, but so long as all the dependencies for each update are known, even if they are downloaded at random, there will still be many occasions in which one branch is completely downloaded and awaiting installation while other unrelated branches are being downloaded.
My System SpecsSystem Spec
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29 Nov 2013   #4
NoelDP

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
 
 

Possibly - but do you really want WU moithering you for a reboot every 5 minutes?
My System SpecsSystem Spec
30 Nov 2013   #5
thx1139

Win 7 Home Premium (OEM) - Install date: 02-2010
 
 

Quote   Quote: Originally Posted by NoelDP View Post
Possibly - but do you really want WU moithering you for a reboot every 5 minutes?
I don't see why that's a corollary of my suggestion. I hold it self-evident that the system should withhold any request to reboot until the update process is completed.
My System SpecsSystem Spec
01 Dec 2013   #6
NoelDP

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
 
 

That what it does - but installing piecemeal in such a way as you suggest would mean that it would probably be asking for reboots after every patch.
My System SpecsSystem Spec
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 Efficiency; download and update at the same time




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