How to eliminate system interrupts that load the CPU up to 100%?

Question

Iron

When you open the task manager, you can see that the CPU is loaded at 100%, but after opening after 3-4 seconds the line "System interrupts" disappears.

What is the reason for this and how to remove it?

Answer 1

What is the reason for this and how to remove it?

Interrupts are requests from peripherals to the processor with a request to interrupt work and process their request.
For example, write data to the hard drive, or read the keys pressed from the keyboard, see where the user moved the mouse, etc.
Tens of thousands of such interrupts are processed per second. The processor is distracted from the current task and processes the interrupt task.

What does it have to do with

If a device driver does not work correctly, then the interrupt may be processed too long or too often. Hence the load.

how to remove it?

Find the driver causing the problem and replace it.

Answer 2

First, check the iron. For example, by booting from a USB flash drive or disk. If there is no such effect, then the problem is software. Otherwise - see iron.
I saw several cases when everything was terribly stupid, and even the task manager ate up to 40% of the processor (he himself showed it), well, the reaction to pressing a button or mouse was about a minute. The problem was in one swollen capacitor on the motherboard in the southbridge power converter. Similar problems can be on old motherboards (2003-2006), in many they put field-effect transistors in power supplies, which degraded after a couple of years, and as a result they gave big noise at the output and all sorts of glitches occurred.
Software problems are more extensive - starting from drivers, and ending with all sorts of service utilities and antiviruses (and viruses should not be ruled out either!)

Answer 3

If it only happens when you open the task manager and immediately disappears, then it should be so.
Opening the Task Manager itself is CPU intensive.