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Windows Forum / Windows XP / Security and Administration / April 2007svchost.exe using up 99% CPU
When I boot up, the svchost.exe (username: SYSTEM), runs constantly for 10 minutes+ using up almost 99-100% CPU cycles. I rebuilt my system (reinstalled XP Home, SP2) a couple of months ago. This was a similar problem I was having before the rebuild. I know the svchost.exe has the potential for malware, and at the moment am not running any anti-virus software (anyone have any suggestions of their favorite? I do own NIS, but found that way too onerous on my system), and was wondering if it sounds like a potential virus or spyware. Thx. >When I boot up, the svchost.exe (username: SYSTEM), runs constantly for 10 >minutes+ using up almost 99-100% CPU cycles. [quoted text clipped - 6 lines] >favorite? I do own NIS, but found that way too onerous on my system), and was >wondering if it sounds like a potential virus or spyware. Thx. Go to one of the following free online scanning sites and check your computer for malware. It certainly sounds like you have something infesting your machine. Bit Defender http://www.bitdefender.com/scan8/ie.html Trend Micro http://housecall.trendmicro.com Kaspersky Online Scanner http://www.kaspersky.com/virusscanner Panda ActiveScan http://www.pandasoftware.com/activescan WindowSecurity.com TrojanScan http://windowssecurity.com/trojanscan Webroot http://www.webroot.com/ Not installing NIS was a wise decision, in my opinion. It is a classic example of how the cure can all too often be worse than the disease. But you do need protection from both viruses and spyware. AVG - Free antivirus and antispyware - http://free.grisoft.com AVAST - Free antivirus - http://www.avast.com Windows Defender - Free antispyware - http://download.microsoft.com There are also a number of quite good commercial products available, including ones from Bitware, Trend Micro, AVG, Kaspersky, and Panda. Good luck Ron Martell Duncan B.C. Canada  SignatureMicrosoft MVP (1997 - 2008) On-Line Help Computer Service http://onlinehelp.bc.ca Syberfix Remote Computer Repair "Anyone who thinks that they are too small to make a difference has never been in bed with a mosquito." I am having similar problems; according to task manager, my computer can sometimes be running svchost.exe six times or more. The users running these are mostly SYSTEM, but also LOCAL SERVICE and NETWORK SERVICE. These generally don't take up much of the CPU, but if I am running high-RAM programs (specifically Google Earth), it tends to take up a fair bit of memory (one does anyway, the others don't alter). Any ideas? PS I am running Windows XP Home SP2, and I had a virus in December, and struggled to remove it as I had an out-of-date version of McAffee Internet Security installed. I now have Norton Internet Security installed, but I don't think it is very good, although I can't do much because it is my Mam's computer. The only "malware" it discovers on my weekly scheduled scan is a tracing cookie, and I remove this everytime. Thanks > I am having similar problems; according to task manager, my computer can > sometimes be running svchost.exe six times or more. The users running these [quoted text clipped - 9 lines] > computer. The only "malware" it discovers on my weekly scheduled scan is a > tracing cookie, and I remove this everytime. NIS is a serious resource pig, it will use a LOT of system resources. Get a NAT Router (Linksys, D-Link) and use it as your primary blocking measure, then use the Windows Firewall, then install a Antivirus only product, your pick. Download the GREAT Multi-AV tool, install it, update it, then run it in safe mode - if it says you're system is clean then you're clean. http://www.pctipp.ch/downloads/dl/35905.asp SignatureLeythos Igitur qui desiderat pacem, praeparet bellum. spam999free@rrohio.com (remove 999 for proper email address) >I am having similar problems; according to task manager, my computer can >sometimes be running svchost.exe six times or more. The users running these >are mostly SYSTEM, but also LOCAL SERVICE and NETWORK SERVICE. These >generally don't take up much of the CPU, but if I am running high-RAM >programs (specifically Google Earth), it tends to take up a fair bit of >memory (one does anyway, the others don't alter). Any ideas? 6 instances of SVCHOST is normal and expected in Windows XP. Google Earth is a very demanding graphics program, and it is to be expected that the graphics support services (some of which run under SVCHOST) would be using lots of memory when this application is running. You can see which specific services are running under the various instances of SVCHOST by using the TASKLIST utility. TASKLIST is included with XP Pro but needs to be downloaded and installed if you have XP Home. http://www.xmission.com/~comphope/download/winxp.htm Open a Command Prompt window and enter the following command: TASKLIST /SVC The listed items can be related to the Task Manager report by using the PID number. Good luck Ron Martell Duncan B.C. Canada SignatureMicrosoft MVP (1997 - 2008) On-Line Help Computer Service http://onlinehelp.bc.ca Syberfix Remote Computer Repair "Anyone who thinks that they are too small to make a difference has never been in bed with a mosquito." >>I am having similar problems; according to task manager, my computer >>can [quoted text clipped - 27 lines] > > Good luck Take alook at the Microsoft knowledge base - suspect KB916089 applys - this now points to a fix on KB927891 which is now on general release |
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