Windows 10: How is CPU % in Performance tab of Task Manager determined

I am looking to understand how is CPU% determined in Task Manager. I am observing a difference between CPU% in perfmon tool using % Processor Time counter. Please see attached snapshot.Which one is correct? What is causing the difference? Screenshot 7.png

:)

 

Task Manager - Startup tab

Actually, I like your suggestion as a first step.

Unchecking the wrong thing in Autoruns can brick a system.

 

Windows crashing after clicking PERFORMANCE tab under Task Manager

It doesn't work to me when choosing NVIDIA Graphic in the last step, so, I have to select integrated graphic in the last step and It works to me !!

 

Task Manager CPU and Performance tab stuck

hi I don't know what's going on but on one of my comps i have all tasks under Processes of Task Manager stuck at % and CPU usage, nothing is moving, it seems that data has stopped coming by. Does anyone have an idea of what's going on? PC is fast and snappy as usual but this is just weird. First i saw Task Manager stuck at 30% then another time 40% now everything is really stuck. doesn't matter what i launch, it just doesn't update. Also if i change power plan where it would normally go to 1ghz in balanced, it doesn't update the frequency. Only thing i did earlier was updating my Asus system software. Edition Windows 10 HomeVersion 21H2OS build 19044.1682Experience Windows Feature Experience Pack 120.2212.4170.0 Btw also the other sections, HDD usage, Wifi usage, etc it's all stuck, i just launched a speed test and it's all at zero and flat graphs. any ideas? thanks, Gabrio - - - Updated - - - DUMB! moment, task manager was paused apparently.. got me worried! LOL solved. why would you pause it though?