We help IT Professionals succeed at work.

Why does the system process take 99% of the CPU usage?

Medium Priority
499 Views
Last Modified: 2012-05-06
Hi All,

I am perplexed. I have a friend with an E-Machine T6216 running Windows Xp with SP3 (all all the latest updates)installed, they are running IE7. It is running so slow it is almost unusable. When I launch the task manager, the System process(not system idle) process is taking 99% of the CPU. I did a total cleanup a month ago(this was happening then as well). I ran Malwarebytes and Combofix.exe in safemode, I cleaned up programs, start up items, ran disk cleanup, defragged. I ran HiJackthis, they had AVG 7.5
 I updated that and ran it as well. I ran chkdsk /p/r it found errors and repaired them(supposedly). It has 1.5GB of ram, using 1.37GB because it is sharing with memory. I ran rootkit revealer and process explorer and nothing seems out of the ordinary that I can find. If anyone has any suggestions, they would be greatly appreciated. This hapens whether or not any programs are running. Thank you...PS This is the Home addition of XP
Comment
Watch Question

CERTIFIED EXPERT
Distinguished Expert 2019
Commented:
Get process explorer from sysinternals.com and see what the process is doing.
Network.
Why is it using 1.3GB what applications are running on the system?
Try msconfig and disable all and then enable on at a time.  This way you can see when you enable an application that leads to the spike in CPU usage.

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
r2r

Commented:
Check background applications that are running, probably monitoring application that are running frequently in your system. Check viruses / malware, have your antivirus update its definition or your malware, spyware etc.

Author

Commented:
Hi Anrold, I already ran process explorer. There doesn't seem to be anything strange going on there. No, 1.37GB is the amount of ram Windows system shows. It has 1.5GBof physical ram, but it has the built on video which shares some of the ram, hence the 1.37GB system memory. I've already used the msconfig applet, no luck there either, very strange. Thanks for your response.

Author

Commented:
Hi r2r, Thanks for your response. I;ve already done all that as mentioned above...Crazy...
CERTIFIED EXPERT
Distinguished Expert 2019
Commented:
i would run a repair install; seems your OS is corrupt : http://www.michaelstevenstech.com/XPrepairinstall.htm      
CERTIFIED EXPERT
Distinguished Expert 2019

Commented:
run sfc /scannow.
With process explorer, what did it show the system process was doing?  Double check all the services that are running on the system and turn off those you do not need.

Commented:
G'day

I started having the same issue after I had formatted my computer and did a fresh install and it did the same thing. At first I thought it may have been windows updates. My "System" process was running over 61000kb. As soon as I uninstalled AVG 8 the system process came down by quite a lot. Back down to the usual 212kb which is a lot better. What version of AVG are they running again? I know you mentioned AVg 7.5 in your description. Did you update it to version 8? Try uninstalling AVG and see how you go! I'm very tempted to ditch AVG altogether and start using some other AV as AVG has had a few issues lately.

Author

Commented:
Hi Zeusi, I did uninstall AVG7.5, semed to have the same issue. I ran stinger in safemode, it found nothing...I will try sfc /scannow Arnold, forgot about that one, can I run it in safemode?(probably not huh?)

I will install other av software on Saturday and see what happens.

Thanks!~
CERTIFIED EXPERT
Distinguished Expert 2019

Commented:
yes you can run it in safe mode - no problem

Commented:
Try disabling unnecesary Services, perhaps a service is using all the proccess. this might be the reason it works ok in safe mode.
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.