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Windows 7: Unknown CPU Usage Causing Stuttering Audio

01 Feb 2011   #1
icevonshredula

Windows 7 Ultimate 64-bit
 
 
Unknown CPU Usage Causing Stuttering Audio

Hey there. So I've been having this problem where my CPU is constantly hovering at around 30% usage, and after investigating with ProcessExplorer and Task Manager, I've found that the process responsible for most of it is the "System" process in \system32 (the description says "NT Kernel & System"). Unfortunately, nothing seems to be able to pinpoint what exactly is causing this process to be using so much of my CPU. The reason this is so annoying though is that when the System process reaches 15% or higher CPU usage (which is does pretty frequently), any sounds my computer is playing stutter very obnoxiously. This makes it really unpleasant to listen to music or try to steam videos with sound while my CPU is constantly spiking. Does anyone know how to troubleshoot this or some common causes of these symptoms? I've tried everything I know. Thanks.


My System SpecsSystem Spec
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01 Feb 2011   #2
richc46

Microsoft Community Contributor Award Recipient

Windows 10, Home Clean Install
 
 

Run a full anti virus scan
Download and make a full, updated scan with malwarebytes. If these are negative
See if a clean boot will help you diagnose.
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
My System SpecsSystem Spec
01 Feb 2011   #3
PeaB4YouGo

Microsoft Windows 10 Home Build 15036
 
 

I was going to suggest using msconfig to turn off some of the processes that run when you boot, but someone beat me to the punch by suggesting something similar.
My System SpecsSystem Spec
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02 Feb 2011   #4
icevonshredula

Windows 7 Ultimate 64-bit
 
 

Alright, I tried running Spybot S&D even though I already have AVG 11, and it actually found about 10 threats. After removing them, though, the problem is still here. Any other suggestions?
My System SpecsSystem Spec
02 Feb 2011   #5
richc46

Microsoft Community Contributor Award Recipient

Windows 10, Home Clean Install
 
 

Now use malwarebytes as suggested, you may be surprised.
My System SpecsSystem Spec
02 Feb 2011   #6
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

There may be a latency/driver problem. Run this program, see whether it shows any red bars and what it says regarding drivers.
My System SpecsSystem Spec
02 Feb 2011   #7
SlackerITGuy

Windows 8.1 Pro
 
 

Quote   Quote: Originally Posted by whs View Post
There may be a latency/driver problem. Run this program, see whether it shows any red bars and what it says regarding drivers.
This....
My System SpecsSystem Spec
03 Feb 2011   #8
Layback Bear

Windows 10 Pro. 64/ version 1709
 
 

Just a thought. You are using AVG11 and it found 10 problems. How did those problems get past AVG11 in the first place? I like richc46 recommend using Malwarebytes anti malware. IMHO changing anything in a computer until it is clean of bad things may cause more problems.
My System SpecsSystem Spec
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 Unknown CPU Usage Causing Stuttering Audio




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