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All web page are very slow today.
Just started Task Manager: very high network usage, by svchost! (i.e. I have no clue what does it).
It doesn't seem to be windows update.
For the record I have Windows 10 fully updated to the latest version and haven't installed anything in months.
Now network usage is a little bit better, it's looks like a chain saw (repeated teeth) every seconds (up to max network usage).
(Sysinternal) Process Explorer is not very helpful to diagnose...
Any clue how to diagnose what could be wrong?!
[EDIT] Reboot seems to have fixed it. Might have been a Windows bug after all...
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It's a tool that allows services to run from DLL files instead of EXE.
It does sometimes get confused when a service fails and goes ballistic in it's usage - CPU, Memory and / or network.
Generally, just "turn it off and back on again" fixes the problem!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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it did!!!
yeah I know what svchost. it is innocent. but it hide the root cause of the trouble! :S
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Yup a virus, it's called microsoft.
Sin tack ear lol
Pressing the any key may be continuate
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The trick is to find out which process started that svchost process.
A candidate might be Defender when updating the signatures. Or you are pushing Windows updates (update P2P file sharing has not been disabled).
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Super Lloyd wrote: Any clue how to diagnose what could be wrong?!
Right click your taskbar, open task manager, go to the menu "View", "Select Columns" and add "Command Line". The definitions are somewhere in the registry, a quick google should give you that location 
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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well.. it's
svchost -k netsvc
it starts up 19 services. doesn't tell me which one in particular is (was) the problem
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Super Lloyd wrote: doesn't tell me which one in particular is (was) the problem
No, it only identifies what is running. If a service has a problem to report, I'd expect it'd be reported in the event log.
Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
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Find that instance of svchost.exe in Process Explorer. If you don't have the process ID, you should still be able to tell which instance through the CPU column. Then right-click, Properties, Services.
It still won't tell you which service is chewing through the CPU, but at least you'll be able to name each one of those 19 services (it's not clear to me whether you already had that part). I'd just start shutting them down one-by-one (at the risk of crashing the system)--at least, those running under your own profile as opposed to System--and keeping an eye on the CPU usage as you're doing that.
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Another possible candidate: Windows Store could be updating your "don't-call-them-metro-apps" in the background.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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ha yeah, could be.
that wouldn't appear as a windows update, but would use the windows update service, I guess.. which was launch by this instance of svchost...
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Next time it happens you can narrow down the offender by getting the svchost's PID on the details tab of task mangler. From there you can find the services running in that process by sorting on the PID on the services tab. Stopping them one at a time while watching the CPU load will let you find exactly which one is elephanted.
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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Wanna fix it fast?
Go to control panel -> administrator tools -> task scheduler
select all of them, right click and disable every task scheduled that's in there.
Mute your sound.
Download AdwCleaner from bleepingcomputer.com and run that once.
(bleepingcomputer.com webpage has an annoying as with sound now)
It will run like a deer.
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Hey, clever! 
Might try that next time!
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It's easier than that - just right-click on the svchost entry on the details tab, and select "Go to service(s)".
Or find and expand the svchost entry on the processes tab - all of the associated services will be listed underneath it.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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I wasn't sure how far back that feature worked and wanted to give the one I was sure work work as far back as w7.
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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Run process explorer from Sysinternals. It will show you all the details.
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Please excuse me for being positive so early (it's early morning, here).
The whole concept of pay-it-forward. That's what we do a lot of the time, here. Despite the lazy cretins (I feel better - an epithet) who just want there homework done, we give bit of help to others. They (even if it's only a few percent) will pass that on to others, along with things they know. And so it goes. Quite a community spirit. Maybe because so many of us are self-taught and are elephanting lucky to be paid to have fun doing stuff which, fundamentally, we'd done or would do for free.*
Once in a while, it's good to stop and reflect that life is good.**
Live another day - it's not like you can come up with something better to do!
* Free implies coffee, snacks, and bathroom facilities.
** Excluding Windows 10
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Nurse - fetch the tranquilisers!
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Hmmmm. Actually, last night I streamed (and watched) "Bikini Girls on Ice[^]". Could that have something to do with it?
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Nurse - Fetch the dart gun!
FTFY. 
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Now that's a good son! Enjoy!
Both your son and the new keyboard...
If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack.
--Winston Churchill
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Congrats and have fun with it 
But in my small opinion the Romer-G switches of Logitech Keyboards are better.
Rules for the FOSW ![ ^]
if(this.signature != "")
{
MessageBox.Show("This is my signature: " + Environment.NewLine + signature);
}
else
{
MessageBox.Show("404-Signature not found");
}
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I see a common trend in Q&A and that is that almost everyone who uses RegisterStartupScript (or one of its variations) is under the impression that they are calling javascript code from code-behind, or that the js is executing immediately in the browser. Needless to say the problem they are having is almost invariably the result of this misunderstanding rather than an issue with the code itself.
I think Microsoft should rename this function to something like
RegisterStartupScriptPSYourJavascriptIsNOTRunningImmediatelyInTheBrowserYouCANNOTCallJavascriptFromCodeBehind.
Interop is another issue that many have problems understanding and again almost everyone that posts with an Interop problem is labouring under the impression that "Interop" is simply .net code that manipulates Office documents (it's always Office). Microsoft should rename the Interop namespace to something like
InteropPSThisCodeIsJustAProxyToYourCOMApplicationItIsNOTStandAloneCodeYouNeedTheActualApplicationInstalledOnAnyMachineYouWantThisCodeToRunOn
It's not just Microsoft, I think some standards should be updated to remove issues too. Almost everyone who posts with a CORS issue is attempting to solve the issue by adding the allow origin headers to the request they are sending. I think that the "Access-Control-Allow-Origin" header should be renamed to something like
Access-Control-Allow-Origin-PS-You-Add-This-Header-To-The-Server-Not-The-Client-What-Good-Is-Any-Security-Measure-The-Client-Can-Simply-Disable
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