Very high CPU and memory usage unless I open the task manager EVEN after factory reset

Anonymous
2020-05-01T20:50:34+00:00

Hi all i come for help as I've been trying to fix this problem for the past week but I'm new to the PC world so I need help.

I bought and built this PC myself about 4 months ago and it worked fine until last week. The fans started blowing pretty loudly even when doing the most simple tasks and the PC gets way hotter than normal and as soon as I open the task manager the CPU and memory (even disk sometimes) are at 30-70% usage for a second then they go back to normal levels. Even weirder the percentage shown at the top of the task manager dont match the usage of processes running at all, and when playing video games I have no in-game performance problem, but things like discord or google stop working completely. At first I thought I had a virus so I tried running complete scans with avast and windows, then I tried a rootkit scan with malwarebytes and finally an offline scan with windows. Problem was still there so I tried a factory reset, still it wouldn't go away so I reset my pc and downloaded windows from a USB drive so now I don't know what to do.

Specs :

CPU : Intel Core i5-9400F 2.9 GHz 6-Core Processor

Motherboard : MSI MAG B365M MORTAR Micro ATX LGA1151 Motherboard

Memory : G.Skill Ripjaws V Series 16 GB (2x8 GB) DDR4-2400

Video Card : Gigabyte GeForce RTX 2060 SUPER 8 GB WINDFORCE OC Video Card

Storage: Crucial P1 500 GB M.2 NVME Solid State Drive

Windows for home | Windows 10 | Performance and system failures

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  1. Anonymous
    2020-05-01T22:07:55+00:00

    No, I rarely have more than 5 tabs open.

    Here's the memory usage 

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  2. Igor Leyko 112.4K Reputation points Independent Advisor
    2020-05-01T22:01:23+00:00

    Please analyze memory usage with RamMap. https://docs.microsoft.com/en-us/sysinternals/d...

    Btw, do you have Chrome running with several tens of sites?

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  3. Anonymous
    2020-05-01T21:55:00+00:00

    I haven't installed an anti virus since i last reset the PC. i ran an offline scan with windows but it didn't detect anything.

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  4. Igor Leyko 112.4K Reputation points Independent Advisor
    2020-05-01T21:41:06+00:00

    Do you have any third party antivirus? Seems this may be malware.

    Please run off-line antivirus scan using Windows Defender off-line scan, or Kaspersky Rescue Disk or similar tool from other vendors.

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  5. Anonymous
    2020-05-01T21:20:34+00:00

    Here you go

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