Windows 10: 100% cpu usage after boot

Basically when i boot my pc after few seconds my CPU starts running at 100% but it goes to normal once i open the task manager, it doesnt leave me the time to look at which process is using the cpu.
i first noticed this when i booted my pc and went afk, came back and saw the temps of the cpu on my task bar very high (i have the program temp core starting with windows10)
PC parts:
Gigabyte b450 aorus elite
Ryzen 5 3600
Spectrix D41 DDR4 16gb
operating system is updated and installed on a kingston a400 240gb ssd

submitted by /u/Loksyee
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:)

 

100% Cpu usage after clean boot

Hi,

I've read the other posts about CPU usage so I did a clean boot but immediately the CPU jumps to 100%, if I open any apps like a browser the CPU jumps straight back to 100%.

Intel Atom Z3775

Its an Asus with a detachable tablet screen and 500gb hard drive in the keyboard. I know its only small but surely after a clean boot the CPU shouldn't be doing that?

I disabled all the Microsoft options when rebooting, I've tried putting it in tablet mode and detaching the keyboard but it does the same thing, I have logged on as my Microsoft account that I use on the PC, other than this I don't know what to try.

Any ideas?

 

100% CPU Usage after Windows 10 upgrade

Hello Aaron,

Thank you for posting on Microsoft Community. We regret the inconvenience caused and will assist you in resolving the issue.

Most of the time, computers only use a small fraction of their CPU power. In fact, many computers use less than 5% of their CPU most of the time. When you open an application, play a video game, or encode media file, the CPU usage will rise or spike temporarily.
Once the CPU intensive process completes, the CPU usage should once again drop down to lower level. Most applications will not use up more than 50% of your CPU for an extended period of time. However, some programs and system processes can use up a large amount
of CPU without you even knowing it. This may happen if a program gets stuck in an infinite loop or encounters an unexpected error.

I suggest you to perform Safe mode and Clean boot procedures on the PC by following the steps below.

Step 1: I suggest you to boot your PC in Safe mode by following the steps from the link below and check if the issue is resolved.

Safe mode is a diagnostic mode that starts your computer with limited drivers necessary to run Windows. The words
Safe Mode appear at the corners of your monitor to identify which Windows mode you are using.

Expand the options to boot into Safe Mode:

http://windows.microsoft.com/en-in/windows-10/start-your-pc-in-safe-mode



Reboot the PC to exit from Safe mode.

To know more about Safe mode, following is an article on
Windows Startup Settings (including safe mode) (Applies to Windows 10 also):

http://windows.microsoft.com/en-us/windows-8/windows-startup-settings-safe-mode

Step 2: If the issue persists, perform Clean boot on your PC by following the steps from the link below and check if the issue is resolved.

Putting your system in Clean Boot state helps in identifying if any third party applications or startup items are causing the issue.

I suggest you to perform clean boot by following the steps from the link below and check if the issue is resolved.

You can open the system configuration window in Windows 10:

a. Using run command.

• • Press Windows Key + R keys on the Keyboard.
  • Type msconfig.msc and press Enter.

b. Using Cortana.

• • Press Windows icon key on the keyboard and type msconfig.
    
  • Select the top most search result.
    

Follow the steps from 3 under How to perform a clean boot
for Windows 8.1 and Windows 8 from the link below (The steps for clean boot suggested in the link below for
Windows 8/8.1 is applicable for Windows 10 as well):

https://support.microsoft.com/en-us/kb/929135

Disclaimer: Start the computer in normal mode refer the section,
How to reset the computer to start normally after clean boot troubleshooting
from the link above.

Write to us with the status of the issue on the same post for further assistance. Your reply is most important for us to ensure we assist you accordingly.

Thank you.

 

cpu usage at 100%

CPU usage at 100% from start up for no apparently good reason. Service Host appears to be the problem but I cant narrow it down more than that at present.

Any suggestions?

I am using Windows 10 full release version 64 bit.