Perhaps this might help you too? Steam does recommend disabling active protection when playing games. I have no idea why Avast would be using resources under the Svchost.
According to Windows plug and play allows you to easily connect devices to the computer. This doesn't make any sense at all. Anyone have insight into this? Last edited by Elitehunter34 ; 3 Sep, pm. Well turning off the Avast shields now isn't stopping the CPU usage. This just keeps getting stranger and stranger. Just to clarify, I have run a scan with Avast and Malwarebytes, but both are getting nothing.
Noticed this as well recently since roughly end of August. I tried both the standard release Steam client and the latest beta. Both immediately cause the issue. Unfortunately I have no previous Steam client releases available to test. Launching the Steam client causes CPU usage to rise with the sole cause being the svchost. Fully closing the Steam client causes the CPU usage and behaviour of svchost. I attempted a more indepth analysis by using Sysinternals process explorer and process monitor.
In particular I noted that it seem tied to audio behaviour and after trying various solutions as detail in forums such as these ones I: - Validated that the correct audio drivers were loading and no other audio devices or drivers were present. One obvious effect is that as soon as the Steam client runs it causes the svchost process to start enumerating all the audio devices, including the Vista system audio mixer services.
I've tried doing that but even after rebooting my computer I still see the CPU usage. Last edited by Elitehunter34 ; 16 Sep, am. How much RAM do you have? Do you get the same result if you go into safe mode? It sound like this box is an upgrade? Thursday, January 4, PM. There is probably a similar tool built into Vista, but I don't know where it is.
And, I find this tool helpful in other situations. Saturday, January 6, AM. Just had to add to this thread, I know its a bit risky being an early adopter of pre SP1 software from Microsoft but I have to say Vista has some serious issues. Thursday, November 8, PM. The setup file for Call of Duty 4 Demo! I did some research on other forums and someone has traced it to CoD4MWdemosetup. I just dropped it in the recycle bin and all is well.
I hope this helps. Friday, November 23, AM. Friday, November 7, AM. This forum is for software development issues. Friday, November 7, PM. Hi Again, I have found a new solution for high cpu usage problem in windows vista. It improve little bit the high cpu usage issue. Find the latest BIOS version and update it, it maybe solve the problem. Monday, November 17, PM. Well, I use a quality Intel motherboard with Core2 Duo technology cpu architecture.
Even with no visible applications displaying anything on the screen. This can start up at any time and last for 15 seconds to a couple of minutes. Very frustrating. Tuesday, December 9, PM. Hello, I have exactly the same problem. Some days ago I completely reinstalled my Pc, because of this problem, but after 2 days the problem came again. If you are not facing any issues in Safe Mode with Networking, then check in Clean boot. Hope this information helps.
For any further Windows related assistance, feel free to contact us and we will be happy to help. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. In reply to A. User's post on October 28, Thank you for the reply, I'll give them a go and get back at you!! Well, it took a while but here goes; Tried Safe Mode with Networking and the problem was not there. Then wwent on to clean boot and the problem did not appear either.
So I activated one by one all the elements until all were activated again and none of them triggered the svchost. I couldn't activate avast at any point of the process. Neither alone nor by the "activate all". Whenever I checked to activate it, after clicking on "apply" it was uncheecked again.
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