RONALD BONE asked on January 21, 2013. Status: Answered & Closed.
Svchost.exe Using 99% Cpu
» I'm running Windows 7 Ultimate x64. Randomly, the svchost.exe (LocalServiceAndNoImpersonation) service will start using 99% of my cpu, making everything lag a lot. It most notably starts happening when I'm playing Team Fortress 2, however it also happens while I'm not playing the game. During a game, it will make the game lag, giving me a very large ping 2000ms+ and no fps. If I end the process, it stops and is fine. But what would be causing this?
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WALTER KUHL replied on January 26, 2013
- CATHIE WADDELL replied on January 21, 2013: » It was disabling a service that was CONSTANTLY PINGING THE NET EVERY 30 SECONDS, and ruined my online games.
The service name is "SSDP Detection".
It´s related to uPnP and it enables when when turn on the media center extenders, or turn on the "Home Group" from the control Panel. (These two things enables the SSDP Detection thru the "C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation")
The Nvidia shell extension is not the problem.
Since I disabled the SSDP Detection I got no problems with my games and my internet connection is smooth and plain, with no peaks of data sent every 30 seconds.
- OSVALDO FILHO replied on January 21, 2013: » I don't play Games or use intensive applications, better rather 98% for online research and just staying up to date. I want the resources there when I need them. I've got a 'tidy" homebuilt with W7 Pro and I'm having no problems.
I was tidying up my Services and reading up on the executable involvled: C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
It also points to this Service: Function Discovery Resource Publication. Mine is set to Automatic and that's what caught my eye.
You said that you Disabled your SSDP Detection with no problems. Mine is set, by default I presume to Manual, but it was up and running. I went ahead and Disabled it and I'm still typing.
I guess my question now is, what should the Service Function Discovery Resource Publication Start up Type be set to since it uses the same executable?
If it doesn't serve me any purpose on a home network and web browsing, why is it on and can I turn it off?
- MARIA DENZER replied on January 24, 2013: » The no-impersonation svchost file must be a virus or sumtin because it starts loading other things.. it starts out with a bit of uploading then a lot of downloading.. but it doesn't seem to affect the amount of memory.. there is also a svchost file probably somewhere in C:/ but you cant delete it for some reason. it is called mastertable something..
these files keep coming and disappearing as needed .. but there are three processes you have to suspend.. and this stops it for good.. however i think it messes a bit with how my computer shuts down.
and if i have no internet.. these no impersonation files disappear except in the memory part of the resource monitor.. if only i could delete it ..
- RONALD BONE replied on January 25, 2013: » Hey guys, thanks for the suggestions. I actually found another person that had this issue. Their solution was to remove the shell additions that nvidia adds for when you right-click on the desktop and stuff. This fixed the problem, at least so far... It's 3 days now without an issue and it also fixed my problem of explorer.exe crashing repeatedly when I was browsing folders :)
If anyone is wondering how to disable programs that were added to the shell, use shellexview.
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