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Windows Vista: 100 percent CPU usage caused by SVCHOST process, need help
- 4/24/09 5:12 PM
Check your system thoroughly for viruses and adware
by darrenforster99 - 4/18/09 2:46 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
SVCHOST is a process in Windows that allows other programs to access DLL files. DLL files are like "libraries" in Windows, they work very much like a real library, all programs in Windows use some kind of DLL even displaying an alert box uses a DLL file. Inside a DLL is the code that Windows uses to do the action, a DLL saves re-writing the same code to do the same job all over windows you just go to the DLL and "borrow" the code (like instead of re-inventing the wheel every time you want to make a car you use a template of a circular shaped object to create the wheel!)
What is happening with your SVCHOST file though is you have one program that is constantly making DLL calls, now this could either be a very badly wrote computer program, or more likely a virus or adware program of some sort.
If you run task manager and list the other processes you have running on here everyone could have a look through and see which process looks like it could be a virus of some sort, or I recommend trying to run NOD32 to see what that can be picked up, you have to pay for NOD32 but you can get it on a 30 day trial to remove any nasties that are on there. If you have another antivirus on your computer you could try running that, but as it appears that antivirus has let whatever it is through I don't expect it to be able to find and remove the virus, if you do have another anti-virus program running you should disable it before using NOD32.
Scan with NOD 32
by blueboy1949 - 4/25/09 5:25 AM In reply to: Check your system thoroughly for viruses and adware by darrenforster99Now that's good advice !
Use the resources available to you
by ihfwt - 4/18/09 3:48 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
Hello,
A simple search for "svchost" will yield results such as http://support.microsoft.com/kb/314056
The Svchost.exe file is located in the %SystemRoot%\System32 folder. At startup, Svchost.exe checks the services part of the registry to construct a list of services that it must load. Multiple instances of Svchost.exe can run at the same time. Each Svchost.exe session can contain a grouping of services. Therefore, separate services can run, depending on how and where Svchost.exe is started. This grouping of services allows for better control and easier debugging.
Conclusion;
I would say it's a poorly written piece of software, or some form of malware. Download MalwareBytes and run a "Full Scan" of your pc.
You can also download "Process Explorer" to help you identify which service and it's dll's are eating up your cpu cycles.
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
Good luck!
100 percent CPU usage caused by SVCHOST process, need help
by Sfcjones - 4/18/09 4:38 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
I have had this happen before and discovered that I could end the process in task manager, but after awhile this got to be a burden, I discovered that during a scan I had a trojan that was the culprit and after I fixed that I have been pretty much problem free.
svchost
by Old Shape - 4/18/09 5:06 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
SVCHOST, or service host is just a host. Any number of programmes could be behind it.
The biggest cause for problems you describe is the Nero File management program, which can be removed with no detriment to the running of Nero.
check events log for bad blocks on your disk
by wsmccullough - 4/18/09 5:23 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
Sometimes when my computer is "thrashing" (running multiple things like svchost) it is the result of a bad block or two on my disk. I run chkdsk (right click on the disk icon from "My Computer", choose "Properties", then the "Tools" tab, then "Check Now". Select both options. You have to restart for chkdsk to run.)
You can check for disk errors using "Events Log".
It's a good idea to do the disk check from time-to-time anyhow.
Good luck.
Scott
Use Antiviruses
by saurabh srivastava - 4/18/09 5:25 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
Hi James,
This problem is caused by trojans and spywares. The best way to get rid of this problem is to reinstall the OS and immediately after installing OS, install an antivirus which checks for the trojans before the loading of the windows, thats a console based antivirus. The best one is AVASTA. Its available free on www.avasta.com.
Hope that this antivirus will help you.
internet explorer
by kim stonebridge - 4/18/09 5:54 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
Hi I bought a new computer ACER ASPIRE M5201, Vista, my provider is Tiscali.
Each time I use the computer, It keeps coming up with internet explorer will not respond and has to shut down and restart, then it may let me view and send a few emails and then I have to do the same, it's a real pain.
Any help would be appreciated, Thanks Kim.
try this
by Dango517 - 4/18/09 4:57 PM In reply to: internet explorer by kim stonebridgeYour problem and this one are not alike, similar.
Down loading IE8 might fix it:
http://www.microsoft.com/windows/internet-explorer/default.aspx
If this doesn't work then start a new topic on one of the other forums.
Good luck 
SVChost.exe....
by jaybee48 - 4/18/09 5:58 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
Hi James; svchost is a generic host process that's used by all programs & apps on XP, so there may be several instances of it present on the taskman list at any one time.
One of the prime culprits of this sort of thing is the presence of updaters that have put themselves on the startup list, when installed, without your knowlege.
Adobe is one of the chief suspects here, followed closely by AV & AS programs, most of which are set to auto-update by default unless you physically go into their properties and set the updater to 'manual'.
It may be a bit of a pain to go through them all, but it's the only way you're going to stop this sort of thing happening.
All the best,
JB.
Toredo
by HarryMiddletown - 4/18/09 6:41 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
In services, make sure Toredo is not present or turned off. If Toredo is present, it is making calls to a Windows 64 server at Microsoft.
Say hello to Norton Systems choking your system
by wayneepalmer - 4/18/09 7:51 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
Especially Norton 360!!
It's almost as bad a cycle hog as Vista.
If you have a hardware firewall and a decent plain antivirus program, dumping the software firewall (and all the other junk that comes with 360) will save you a bunch of resources.
What it is, and how to disable
by fallrivergirl - 4/18/09 8:05 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
This was happening to me quite often, but not any longer.
I am using Windows XP, Service Pack 3.
This link is helpful to explain and give futher details on disabling the process. Otherwise for a temporary solution, you can go to your task manager and end process.
http://www.howtogeek.com/howto/windows-vista/what-is-svchostexe-and-why-is-it-running/
Hope this helps.
Rare MS update issue
by rdesilets - 4/18/09 8:22 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
I've this happen to me. I've Google the problem and found this site that resolve the problem. Do leave your Windows update disabled unless you are quite deligent in performing updates manually.
http://www.addictivetips.com/windows-tips/how-to-decrease-the-svchostexe-100-cpu-utilization/
Svchost Process
by Basuto9 - 4/18/09 8:58 AM In reply to: 100 percent CPU usage caused by SVCHOST process, need help by Lee Koo (ADMIN)
The simplest, easiest way in the world for James to understand "svchost" is to google it and click on "how to geek.com - what is svchost.exe and why is it running". The Geek explains what and why very clearly, and also gives tips on how to minimize usage if needed. Great site - try it, James. (No, I am in no way associated with this site, but I love it for questions like these)
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