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NLASVC using max CPU at 20 second intervals


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#1 orangewedge

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Posted 02 April 2014 - 01:37 PM

Hello,

My friend's Vista Home Premium computer was running painfully slow so I opened up Process Explorer and saw that the Svhost (Network Services) instance was spiking to 100% usage, roughly every 20 seconds. I checked out the threads, and the culprit seems to be NLASVC (Network Location Awareness Service).   I verified this by suspending this thread in Process Explorer, which stopped the CPU spiking.

A few other things I've already tried that have not helped:

1. Disabling UPNP services

2. Disabling DNS cache service

3. Disabling Anti-virus software (Avast)

4. Replacing the NLASVC.dll file with a fresh version

 

I did notice that even though disabling NLASVC stopped the 100% cpu spikes, the dnscache thread would still cause a minor spike of 6% cpu at the same interval as the massive NLASVC spikes. 

 

The computer isn't showing any signs of malware and is otherwise working fine.

 

Thanks for the help,

-Nick


Edited by orangewedge, 02 April 2014 - 01:37 PM.


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#2 OldPhil

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Posted 02 April 2014 - 03:07 PM

If you have no need for UPnP Device Host disable it, reasonable chance you may not need it.


Honesty & Integrity Above All!


#3 orangewedge

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Posted 02 April 2014 - 04:03 PM

Thanks but in my original post I said that I'd already disabled UPNP



#4 OldPhil

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Posted 02 April 2014 - 04:09 PM

I read that but like I said if you have no need leave it disabled.


Honesty & Integrity Above All!


#5 hamluis

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Posted 23 April 2014 - 08:42 AM

Please download MiniToolBox  , save it to your desktop and run it.
 
Checkmark the following checkboxes:
  List last 10 Event Viewer log
  List Installed Programs
  List Users, Partitions and Memory size.
 
Click Go and paste the content into your next post.
 
Also...please Publish a Snapshot using Speccy - http://www.bleepingcomputer.com/forums/topic323892.html/page__p__1797792#entry1797792 , taking care to post the link of the snapshot in your next post.
 
Louis






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