Windows 10: Zero % CPU Utilization?

Hi all, I always optimize my system for minimum CPU/RAM usage. My current system always shows 1% CPU Utilization when idle (as reported by Task Manager), but never 0%. I remember in the XP or Win7/8.1 days that 0% was achievable. So my question is, can I still tweak something to obtain 0% CPU utilization? Or this is not possible with Windows 10? Thanks

:)

 

task manager shows zero cpu utilization after windows 10 1709 fall creators update

Hello
Laurentiu,

There are several different reasons for why you have zero CPU utilization. It's showing that your CPU is dead. It could be an issue with the compatibility with the CPU and your device driver.

Try updating your device driver. While it's likely you already have the most recent driver, if you're having trouble with a device, updating it would be the best course to take. To do this:

• 
  Select the Start button, type Device Manager, and select it from the list of results.
  
• 
  Expand one of the categories to find the name of your device, then right-click (or tap and hold) it, and select
  Update Driver. For graphics cards, expand the Display adapters category, right-click your graphics card and select
  Update Driver.
  
• 
  Select Search automatically for updated driver software.
  
• 
  If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions.
  

If these steps don't work, try reinstalling the driver: Open Device Manager, right-click (or tap and hold) the name of the device, and select
Uninstall. Restart your PC and Windows will attempt to reinstall the driver.

Update us with the result so we can further assist you.

 

CPU won't go above 23% utilization

I have a custom built PC. specs are below. After some recent problems and a full windows reinstall it seems that my CPU won't go above 23% utilization. I have set the power plan to high performance and am using Prime95 to attempt to stress the CPU. When
I look in the BIOS everything looks correct. The CPU temp is reasonable, it detects the CPU as 3.4ghz. Windows also detects that the model of the CPU is correct and lists it as 3.4ghz in system properties. When viewing the CPU on the performance tab of
task manager is lists the speed as 0.78 GHz and that number never changes. It's like it's stuck on that number. Any help on how to troubleshoot this problem would be appreciated!

CPU: Core I7-6700 @ 3.4ghz

Motherboard: Gigabyte GA-H170M-DS3H

Bios Version: F22e (latest)

Graphics: Onboard Intel 530

RAM: 16gb DDR4 2133

PSU: 550w

Power plan: High performance

Edit:

Additional Troubleshooting steps:

Reset BIOS to default values - Issue still occurs.

 

[FS][US] CPU, NForce4 skt 754 motherboard (with PCI-express slot, rare!), DDR RAM

bump, CPU's stepping is now listed.