CPU remains at 100 even with zero activity

Sony Vaio vpceb3afm/t laptop screen 15.6...
November 23, 2014 at 12:42:47
Specs: Windows 7, Pentium / 4GB
I have a Windows 7 Sony VAIO laptop which has been running great since last 1.5 years. Since last week, whenever I turn on my laptop, the CPU slowly climbs up to 100% and then stays there forever. Even after 30 minutes, it will remain 100%. And all this while, I am not running any programs. I ran MBAM and Super Anti Spyware but none showed me any malware. Tried cleanups in safe mode but still no success. Can someone please help me with this issue.

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November 23, 2014 at 19:02:51
See what is running up the CPU in Task Manager. If it is not clear, you can also use Process Explorer from Microsoft which will show you more. If the program is something you recognize, if it is not Microsoft and it is not critical, stop the process. Google anything that you are not sure about, but nearly anything that uses that much CPU that you have not launched is malware (or other nasties), or you are sharing your processing power with a university (or other project) without knowing it. After shutting down anything that is clearly driving the up your CPU usage, uninstall anything in Programs that you have never used (again Google if you are not sure what something is), rerun Malwarebytes. If you have succeeded in shutting down nearly everything, it should now find the culprit. If not, try running it again in safe mode.
Failing these, there are others here that have more extensive tools and they can walk you through the steps to use them.

You have to be a little bit crazy to keep you from going insane.

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November 23, 2014 at 22:21:24
"Even after 30 minutes, it will remain 100%. And all this while, I am not running any programs"

Are you talking about System Idle Process?


message edited by Johnw

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November 24, 2014 at 15:32:07
Once I hear from ebc1680, I shall dig deeper to find the reasons for the high CPU.

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