I've been joking that maybe Microsoft is mining for bitcoins in the background and using Windows Update as a cover.
naw Ethereum !
Didn't you hear the News ? Microsoft "uses" Ethereum
I still see this pop up every time there is about to be updates on my Win 7 machine.
And in all my research + experience i think the WU activity is capped at 25%
So depending on your CPU power etc this can be a massive drag on your machine.
Like right now i have energy saving mode enabled using the default settings..
This means my old ass 2.6 ghz AMD Phenom x4 gets half speed most of the time.
it runs at 1.3 ghz unless it passes the threshhold to speed up..
And it takes a lot for it to ramp up the speed to max.
So the 25% activity does not make it change speeds so i get laggy.
I use my PC mainly for running Windows Media Center.
So it hits that 25% and start to lag out my videos etc.. not much but just enough to notice it.
Note i use the LAV codec installer + Icaros for thumbnails and have Media Foundation disabled.
I think there is nothing you can do.. but just get used to it and let it do what it wants.
If need be you can disabled the WU service and the activity will stop though.
But turn it back on and it resumes doing what ever the hell it's doing
On fresh installs though there is far more problems.. rooted to there being more updates.
I seen a Microsoft.com staffer online peg the core problem as being that.
But ya intentional or not ? i have no idea but it's a plausible theory.
Why ?
Because they have known about this issue for a couple YEARS now !
And when looking online you see the web is flooded with complaints.. still.. to this day !
There is of course NOOBS that scratch their ass and then come and say "OMG WOW It's Fixed yo!"
Then they come back later and say ohh whooops sorry ....it's not ROFL
You know the type.. they post online help to people to do dumb shit swearing it fixes things.
My room-mate for example..
Told me he fixed his PC a while back by enabling all his CPU's
I think he meant cores and uhmmm yeah bud they are ALWAYS *ALL* enabled by default.
This guy would not know how to disable a core or get into a bios so he was full of shit.
But there is no telling him.. he is a self proclaimed expert.
I mentioned my problems i posted here and he said proudly he fixed his own and other peoples
by installing Windows 10 on them all hahhahahha
I was self employed years ago and ran a PC repair business that got very popular for many years.
Seen & heard it all and dealt with so many "experts"
You know if they really are in about 1.2 seconds flat LOL
I have seen it all online for this problem too.. Noobs will suggest damn near anything to fix it.
Nothing a few chicken bones, some incense / candles and Pagan prayer ritual can't solve !
Dance around the PC 6.5 times chanting to lord Zeenu.. while wearing a shoe on your head.
Computer problems fixed !