Why use so much ram Svchost.exe .? [system doesn] [instances]

Q: I have four of this “program” runs and 4, one of them is consuming 25MB RAM and Im not sure why. The rest up as 3MB, I close the 25MB one and the system crashes, I can browse the network and the Internet is fine, so what is it?


Best Answer: It's most likely that pain in the butt "Microsoft Update Issue".

I too was having this problem. After doing a LOT of research, I found the fix. Now my computer is perfect once again. Try installing WindowsUpdateAgent30. A link and more info is available here
http://www.bleepingcomputer.com/blogs/mo…

I used WindowsUpdateAgent30-x86.exe

Like I said, It's most likely that Microsoft Update Issue.

Turning off your Automatic updates will work also, in using all your memory,(till you try to update) but those updates are important, so I found it better just to install the fix.


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Re:May be this can Help, http://www.ezlan.net/svchost.html

:sun:


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Re:I'm NOT goanna delete it… Great way to have a less stupid posts in OS…

Fixed.


System X.
Re:Originally posted by: guy

Originally posted by: guy
Agreed. Just as importantly, you should identify which service is loading and manage it from the service manager. If you kill the process you may corrupt any data it was working with, and it will be back after the next reboot anyway.

Of the services that guy listed, you can safely disable the DHCP service and the RAS (Remote Access Server) Manager service if you are not acting as a dial-up server. You don't need any of the RAS-oriented services if you are not doing any dial-up. You also do not need the fast user switching service if you don't log onto the box with multiple accounts.

There are a number of sites out there that specialize in windows optimization, including specifying which services are essential and which are optional. If you are interested in optimizing your memory usage and the number of running processes, I would start there rather than playing around in Task Manager.

FYI, yhat is the DHCP client in that list, not server.

Yup


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Re:Originally posted by: guy

Originally posted by: goku
I've got four of this "program" running and of the 4, one of them is consuming 25MB of ram and I'm not sure why. The rest use up like 3MB, I close the 25MB one and the 't crash, I can browse the network and internet is fine, so what gives?

This is normal (and not a big deal, at all, it's amazing how much you think optimizing out a couple meg matters on a current OS). Run tasklist /svc to see a breakdown of what each of those is doing.

But if your not happy, just delete svchost.exe from the system32 directory ;)

I'm NOT goanna delete it… Great way to have a NON functioning system…


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Re:Originally posted by: guy
Agreed. Just as importantly, you should identify which service is loading and manage it from the service manager. If you kill the process you may corrupt any data it was working with, and it will be back after the next reboot anyway.

Of the services that guy listed, you can safely disable the DHCP service and the RAS (Remote Access Server) Manager service if you are not acting as a dial-up server. You don't need any of the RAS-oriented services if you are not doing any dial-up. You also do not need the fast user switching service if you don't log onto the box with multiple accounts.

There are a number of sites out there that specialize in windows optimization, including specifying which services are essential and which are optional. If you are interested in optimizing your memory usage and the number of running processes, I would start there rather than playing around in Task Manager.

FYI, yhat is the DHCP client in that list, not server.


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Re:Agreed. Just as importantly, you should identify which service is loading and manage it from the service manager. If you kill the process you may corrupt any data it was working with, and it will be back after the next reboot anyway.

Of the services that guy listed, you can safely disable the DHCP service and the RAS (Remote Access Server) Manager service if you are not acting as a dial-up server. You don't need any of the RAS-oriented services if you are not doing any dial-up. You also do not need the fast user switching service if you don't log onto the box with multiple accounts.

There are a number of sites out there that specialize in windows optimization, including specifying which services are essential and which are optional. If you are interested in optimizing your memory usage and the number of running processes, I would start there rather than playing around in Task Manager.


Business Performance Improvement
Re:svchost.exe 1156 DcomLaunch, TermService
svchost.exe 1236 RpcSs
svchost.exe 1324 AudioSrv, Browser, CryptSvc, Dhcp, dmserver,
EventSystem, FastUserSwitchingCompatibility,
lanmanserver, lanmanworkstation, Netman,
Nla, RasMan, SENS, SharedAccess,
ShellHWDetection, TapiSrv, Themes, W32Time,
winmgmt
svchost.exe 1364 Dnscache
svchost.exe 1404 LmHosts, WebClient

It lists like this. If you kill the PID 1236 (RpcSs) your Windows is definitely history. The others may not completely shut down your Windows, but they will render it inoperable. I strongly recommend AGAINST closing any of the svchost.exes. All you'll gain from doing that is a less functional Windows.


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Re:Originally posted by: goku
I've got four of this "program" running and of the 4, one of them is consuming 25MB of ram and I'm not sure why. The rest use up like 3MB, I close the 25MB one and the 't crash, I can browse the network and internet is fine, so what gives?

This is normal (and not a big deal, at all, it's amazing how much you think optimizing out a couple meg matters on a current OS). Run tasklist /svc to see a breakdown of what each of those is doing.

But if your not happy, just delete svchost.exe from the system32 directory ;)


Football Loophole System
Re:Just get the process ID of the instance that is using a lot of memory in Task Manager, and then look for that same process ID in process explorer.

In general svchost.exe is something you want to leave alone. It runs Windows services that are built as DLLs. Just a generic process wrapper for loading these DLLs and registering their state with Service Manager.


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Re:Originally posted by: guy
yes, if it happens to wrap a critical service.

edit: you can get a tool called process explorer from www.sysinternals.com and it can tell you what other modules each process is loading in this way, you may be able to identify what that particular instance of svchost.exe is doing.

thats what I was using, it didn't tell me much except a lot of DLLs. Problem with process explorer is the fact its bad at reporting how much memory is being used.


Re:yes, if it happens to wrap a critical service.

edit: you can get a tool called process explorer from www.sysinternals.com and it can tell you what other modules each process is loading in this way, you may be able to identify what that particular instance of svchost.exe is doing.


Re:So if I deleted scvhost ( the one of the 25mb memory) will this affect my computer?

Re:It's called a wrapper process. It hosts many Windows services within itself.

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