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High CPU usage until I open task manager

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as the title says my cpu usage is at 100% until I open task manager, then it immediately drops. My computer has Windows 10. I tried scanning with Malwarebytes but it didn't find any malware. I've seen other threads describing the same problem so I included logs from Farbar Recovery Tool. The logs are in polish. If that is a problem I can change my pc's language to english and scan again.

FRST.txt Addition.txt

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Hello, thanks for the response.

When I open task manager it looks just like on that screenshot. Then my cpu usage goes to around 60%, then 40% and then it's normal. The highest placed program typically has around 40% cpu usage and then gradually drops down. 

I've included two screenshots. First image shows how it looks one second after opening task manager. Second image shows how it looks after few seconds.

It could be just the way task manager works. If that's the case, thanks for your help.


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Thanks for those screenshots showing CPU spikes, it seems quite common with Windows 10, but no one has given a definitive answer. Your logs are clean so I also have no answer for you. Maybe is worthwhile asking at the Microsoft Community Forum, someone there may have an answer for you....


Apologies I cannot help further, if it had been a malware/infection issue I could have helped you...



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  • Root Admin

Glad we could help.

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