Peripherals and monitor do not turn off after shutting down the computer, what should I do?

Question

Windows

After I turn off the computer, the monitor indicator continues to blink as if it is in sleep mode. And the indicator of the speakers that are connected via USB to the mother is also on, so this is not the case with the video card, as I thought. One person suggested to me that it was because of Windows 10 that I needed to disable all settings in the power supply, but this did not help

Answer 1

If the BIOS (UEFI) allows, then USB power can be turned off there.

Answer 2

After I turn off the computer, the monitor indicator continues to blink as if it is in sleep mode. And the indicator of the speakers that are connected via USB to the mother is also on, which means this is not the case with the video card, as I thought.

Let me ask, why did you come to such a conclusion that this is a video card? And what about the video card?

One person suggested to me that it was because of Windows 10 that I needed to disable all settings in the power supply, but this did not help

The person who suggested this information either laughed at you, or an idiot. Pardon my French. In the BIOS, you can configure the power plan for the USB ports. But what about the monitor? Vryatli you Monitor is connected via USB.
The computer, namely the computer's power supply, even after turning it off, continues to power (if you can say atk) the computer. And in order to de-energize the PC completely, it is enough to connect it to the surge protector (pilot) and just turn it off with the button, I do it that way;)