Svchost.exe takes 100% of cpu

rajeshk - Feb 19, 2009 at 06:23 AM
bay73 Posts 1 Registration date Wednesday February 22, 2017 Status Member Last seen February 22, 2017 - Feb 22, 2017 at 05:43 AM
hi i have a system from last 7 days it is running very slow . when i open task manager it is most of times shows that svchost.exe process is taking 90 to 100% of cpu.
I have run system full scan in safe mode and also virus defintion is uptodate. no junk service is there.
plz help any suggestion will be apprecited. Becoz i dont want to format the pc.

Thanks in advance.

4 responses

Check the spelling - is it svchost or scvhost? If it's the latter, it's a virus. In case your computer is NOT infected, check out an article here: It helped me when I had a similar problem.
This has helped me alot... the website you linked... use the Download of the procces explorer and you will see what takes up most of ur Cpu if its not any of ur proceses its probobly a big virus.
I have the same SCVhost, (the virus one). It doesn't take up much, I even tried closing all them down, with end Windows Manager, All I get is a message saying System Shutdown (even though, you could cancel that).

Its a virus

It was a virus I had. =-[. Now its gone. I have a vundo trojan, I think it injects itself to explorer.exe....
Blocked Profile
Dec 9, 2009 at 02:01 AM
First of all make sure you do not have any malware in the form of viruses or spyware. Run your anti virus and anti spyware programs in order to clear out any beasts.
If you do not have any protection these are available for free:
For anti virus I suggest:
For anti spyware I suggest:

After you removed computer virus,computer virus may have damaged your registry. So you need to download a Registry Cleaner to fix it. I advise you to choose RegTweaker.I used it before and felt good.It is quite useful.You can not only use it to repare registry but also clean junk files. You can also use it to optimize Internet and repare IE.more information here:
Start Windows in safe mode
make scan with HIjacjThis program
if you find a file named siszyd32.exe select it and push fix Checked
restart PC and problem will be solved!!!!
bay73 Posts 1 Registration date Wednesday February 22, 2017 Status Member Last seen February 22, 2017
Feb 22, 2017 at 05:43 AM
That same problem has occured with me few months back.
I got it resolved by doing the steps mentioned here.
sajan Posts 4 Registration date Tuesday January 27, 2009 Status Member Last seen June 24, 2009
Feb 19, 2009 at 06:46 AM
Check-out properly whether its svchost or scvhost

svchost----system component. Which is needed by system to run

scvhost----may be a virus