New
#1
HP ENVY 17 Laptop Windows7 - CPU Usage goes 99-100% Randomly 1-2 mins
Hello everyone, I am using HP ENVY 3010-eg and the following issue has started last week, on Tuesday.
(Laptop Specifications: http://h20564.www2.hp.com/hpsc/doc/public/display?docId... -- with the only exception being my 1TB SSD being the primary hard drive having the Operating System and the secondary HDD is a 750GB 7200rpm.)
My laptop, say while browsing (firefox) or watching videos (or doing anything else), goes from normal 1-10% CPU use to 99-100% CPU for let's about 1-2 minutes, then goes back to normal (back to 1-10%).
I cannot detect what process is using that high amount of CPU:
>Windows Task Manager won't show what's happenening while 100% cpu is being used. No process is shown that uses this much CPU.
>Norton 360 is not even issuing any high CPU warns, as it would usually do with other applications. (e.g saying high CPU use by X)
>I have tried looking at the 'Process Explorer' tool to find out what is using the high CPU but even there it is not shown.
>Multiple virus scans by different software (Norton, Eset, Mcafee etc.) have shown, there is no malware/virus on my computer.
I have recovered my operating system using a 4 year old clone hard drive (yes this laptop is 4 years old) and this is still going on.
So it's not a software issue since I used an old backup hard drive and this still happens.
I have tried testing the RAM's 2×4GB using Memtest86 for at least 6-7 hours (a few passes), hard drives, even took out each 4GB RAM to see if any of them are faulty but CPU still goes 100% some time later for 1-2mins, removed battery and so on..
I also made some burnin tests using "Intel Processor Diagnostic Tool 64bit" for about 2 hours and shorter tests, which ended with a "PASS".
I need ideas/suggestions/solutions about what to do and how to detect the source of this problem?
Three screenshots: