Device Manager on my PC (using Windows 10) suddenly shows high consumption of CPU power and is refreshing itself every couple of seconds. In addition I no longer receive input from MIDI devices connected via USB cable. This happened just suddenly, without me attaching new devices or updating anything.
I read that such behavior of a Device Manager is an indication of its unsuccessful retries to install a (USB?) device. So I started disconnecting and reconnecting my USB devices one by one (I have several, this a music arrangement PC), but Device Manager is still flickering and consuming much CPU. I must admit I didn't restart the machine after reconnecting USB devices but I assume because of their PnP nature this should not be necessary.
Now I wonder if it can be anything else that affects Device Manager. But what? And how can I detect it? But first of all I am trying to understand if such behavior can only be caused by USB or it can be something else.