Windows 10: CPU decided to max out, but all programs had 0% utilization.

Windows 10
i5-8400
16 gb of ram

ASRock B360 K4

:)

 

high trottling CPU speed after install build 1607 in Windows 10

Hi,

I try booting to safe mode and check the CPU speed, at 0% CPU utilization, the CPU runs at max 4GHz. I ran system maintenance and reboot, CPU still throttle to the high side... 0% around 1.3GHz and about 8% will throttle CPU to max 4GHz!

The thing is the CPU utilization is not barely high enough ~ 8% to trigger the CPU to go all the way to the max frequency (4GHz). Previous build will only trigger the CPU to go to max ~70% CPU utilization and above.

This happened only the following update was installed recently:

KB4015438 - dated 28 March 2017

Unfortunately when I tried to uninstall this update, there's a error and can't uninstall.

 

CPU / CPU Processor problems / Processor affinity

We appreciate the information you provided. Your processor is working as expected. CPU affinity is only showing CPU (0) since 1 processor is working at the moment. It's very likely that your computer is using a balanced power plan, so we suggest changing
your power plan to High Performance by following these steps:

• Right-click Start.
• Click Power Options.
• Choose High Performance.

In addition to that, we recommend installing the latest updates to keep your system current and secure. Go to
Start > Settings > Update & Security > Check for updates.

Some programs may also be automatically launching whenever you boot your computer, affecting the performance. To disable them, follow these steps:

• Right-click your taskbar.
• Click Task Manager.
• Under the Startup tab, find the programs that you don't need.
• Right-click the program and choose Disable.

You're also using your computer for a game that was designed to run on an earlier version of Windows, so it's possible that it's slowing down your computer. In this case, use the Compatibility Troubleshooter to find and fix problems with the program using
these steps:

• Click Start.
• Type Troubleshooting and press Enter.
• Click Run programs made for previous versions of Windows.
• Click Next.
• Choose the program from the list and click Next.

Let us know if you need further assistance with your computer.

 

Why did the startup window get cleared?

I didn't missed any step, the list was gone and gone , even after using lot of programs the programs were not listed in that list.