svchost.exe (LocalSystemNetworkRestricted) 100% Hard Disk usage

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Posted by Guardian in Tips on Tuesday 22 September 2009 at 3:00 PM

Today on of my Vista developing workstations suddenly became very slow, the CPU was almost free and its usage was around 3-5%, the Hard Drive instead was overloaded with work, with its activity at 100% all the time. Trying to do any operation on the system requested ages..like 1 or 2 min to open the start menu or display a window.

Restating the system didn’t helped much, so I started to investigate the problem; opening the task manager and then the resource monitor I found out that I have many processes called like svchost.exe (LocalSystemNetworkRestricted) that were reading every files on the system (even the file related to the games I play at night).

So I opened the services management console to find something that could be run using svchost, I looked at every service there and found out that the ‘SuperFetch’ service (‘Ottimizzazione avvio’ in my Italian OS) was launched with this command: svchost.exe -k LocalSystemNetworkRestricted.

I disabled the service and rebooted the machine (I had to perform an hard reset cause the system was still hung reading the files on the disk). After the restart the problem disappeared and the system is back to be responsive.

In the end, it must be a bug of some sort related to the SuperFetch service, cause it ran fine for months without causing any problem.

This entry was posted on Tuesday, 22 September, 2009 and is filed under Tips . You can follow any responses to this entry through here . You can leave a response.



100, Hdd, Localsystemnetworkrestricted, Superfect, Svchost

5 comments

  1. 涛涛

    #1 da 涛涛 - Saturday March 2010 alle 01:15

    Thanks , I will try to do your solution. My windows 7 system have the same problem like your sysytem:-D

  2. SS

    #2 da SS - Sunday April 2010 alle 07:06

    thanx alot, i disabled the super fetch service and the laptop went back to normal indeed. you are a genius ^^

  3. me

    #3 da me - Sunday December 2011 alle 11:34

    Thank you!
    goddam microsoft spying on all our hard drives for some reason: there is no need for them to be scanning all the files from all my hard drives...

  4. Armi

    #4 da Armi - Saturday January 2012 alle 06:07

    Thank you so much

  5. Manuel Daponte

    #5 da Manuel Daponte - Friday January 2012 alle 01:51

    Thank you! Same problem in Windows 7 Pro...

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