CPU USAGE 100%

[majo]

I have a pc with WIN XP proffnl,256 mb ram,1.8 AMD
processor,latelty my pc performance is very slow, on
checking task manager under process(SVCHOST.exe/SYSTEM
shows 100 % cpu usage), earlier there was no problem,
this has started few weeks back.

URGENT HELP REQUIRED !!!!!!

Thanks MAJO

 

[Philip Herlihy]

I found "Process Explorer" very useful - download from www.sysinternals.com

You can look inside instances of SVCHOST and identify which thread is taking
up the processor. Note that the "Context Switches" counter is a more
sensitive indicator of processor activity on fast machines than "CPU", which
is sampled rather coarsely.

 

[Chuck]

I have a pc with WIN XP proffnl,256 mb ram,1.8 AMD
processor,latelty my pc performance is very slow, on
checking task manager under process(SVCHOST.exe/SYSTEM
shows 100 % cpu usage), earlier there was no problem,
this has started few weeks back.

URGENT HELP REQUIRED !!!!!!

Thanks MAJO

Majo,

Process Explorer, that Philip mentioned, is indeed an excellent piece of
freeware.

You might be better off starting with spyware and virus detection though.

How current is your virus protection? Try one or more of these free online
virus scans, which may complement what you already use (or should already use):
<http://www.bitdefender.com/scan/license.php>
<http://www.pandasoftware.com/activescan/com/activescan_principal.htm>
<http://www.ravantivirus.com/scan/>
<http://security.symantec.com/ssc/home.asp>
<http://housecall.trendmicro.com/housecall/start_corp.asp>

Now check for, and learn to defend against, additional carriers of infection.

First, download LSP-Fix and WinsockXPFIx from <http://www.cexx.org/lspfix.htm>,
and CWShredder from <http://www.majorgeeks.com/download4086.html>. All are
free.

Next, close all Internet Explorer and Outlook windows, then run CWShredder.
Have it fix all.

Now check for, and remove, spyware. Get HijackThis
<http://www.majorgeeks.com/download.php?det=3155> and Spybot S&D
<http://www.safer-networking.org/index.php?page=download>. Both free.
1) Install and run Spybot. First update it ("Search for updates"), then run a
scan ("Check for problems"). Trust Spybot, and make all recommended deletions.
2) Install and run HijackThis. Do NOT make any changes immediately. Save the
HJT Log. <http://forums.spywareinfo.com/index.php?showtopic=227>
3) Have your HJT log interpreted by experts at one or more of the following
forums (and post it, or a link to your forum post, here):
<http://forums.net-integration.net/>
<http://forums.spywareinfo.com/>
<http://spywarewarrior.com/index.php>
<http://forums.tomcoyote.org/>
<http://www.wilderssecurity.com/>

If removal of any spyware affects your ability to access the internet (some
spyware builds itself into the network software, and its removal may damage your
network), run LSP-Fix and / or WinsockXPFIx.

And Majo, please don't contribute to the spread and success of email address
mining viruses. Learn to munge your email address properly, to keep yourself a
bit safer when posting to open forums. Protect yourself and the rest of the
internet - never post your address unmunged.
http://www.mailmsg.com/SPAM_munging.htm

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[Brad]

I have been having a similar problem but the process
winlogon.exe shows cpu usage at 99 to 100%. This happens
while I am on my desktop or browsing the internet. I
have been using the latest version of SPYBOT to keep up
with spyware and I have run Norton Antivirus 2003 (w/
updated virus definitions) multiple times with no virus
detected. I am running Windows XP Home with all updates
installed. Need help.