CPU Usage Going Over 100% - Any ideas?

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Luke Field

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Nov 26, 2013
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Hi All,

I work in IT support and one of our clients has a laptop which for some reason has decided it will go OVER 100%, I didn't even think that was possible in all honesty but it goes to 112-120% in task manager.

It goes to around 50-70% as well but when it first log on it goes straight to 100% and sometimes open.

Nothing is open, no processes showing it is using more than it should, when it goes down, as soon as you open any program it shoots back up again.

No antivirus scan is running, updated drivers etc.

Any ideas why this is happening and how it can be fixed?

Kind Regards,

Luke

 
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I suppose if task manager rounds up and there are 50-60 processes running and the results are added together - then you could achieve something over 100%. Try a different utility than task manager and see what you get. Try resource monitor - resmon.
 
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Thanks for your reply, already tried resource monitor, hwmonitor etc. all showing 100% but then task manager shows more sometimes. Could it be overheating?
 
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You work in IT. Does your IT shop use System Mechanic or some other tuneup utility that you can try. Resource Monitor should show you a lot of details that can help you zoom in on the problem. We can't troubleshoot this without details so you need to find them. Try safe mode, try a boot trace, a errant service might grab the cpu - problems are hard to find. If this is your profession read a lot and learn. Take notes and read forums. Learn scientific method and find a mentor.
 
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this is what i always do when that happens
* sfc /scannow (if it does find unfixable errors. i proceed to do the dism command or just advice to do a fresh install of windows)
* download rkill. run it. dont restart.
* download malware bytes. install. run full scan.
* run full scan with Windows Defender (make sure its the latest update)

did you check the TAsk manager. performance. open resource monitor. this will tell you on more detail on the exact file/handle/service that is running.
please be more competent on your job man 😀
 
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I have tried all of the above except the sfc /scannow, I will try that. I would give you more details but unfortunately the task manager and resource monitor show no processes or anything taking up tons of the CPU. There is nothing that stands out, no additional processes which shouldn't be there, no programs taking up the CPU, it's all how it should look.

I am an apprentice and my colleagues who have been working in IT for 10+ years are stumped as well.

Thanks for the replies, please don't tell me to learn my job when that is what I'm doing and when people with much more experience are also working on it.
 
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I don't expect much because it's free and I appreciate what people have to offer, I just don't like being told to go and learn, it's quite rude, just say what you think could solve an issue, there is no need to add the bit about the job.

We are doing a restore now anyway so should fix the problem, that just wasn't an option at the beginning as we are not on site, we work remotely so we wanted to try everything we could before doing that.
 
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what version of windows are you using anyways? that kind of issue (the over 100% cpu usage) only happened in the windows ultimate and win8 fiasco. and what is the laptop model?
have you tried just disabling Turbo Boost in the BIOS? there must be a firmware bug on that machine.
 
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