It's in charging mode. I used eject on calibre. I don't see the device anywhere on my computer.
Also, can't you see how much kindle already charged? The charging screen looks static. How to know if it charged enough (of course you'll know when it is completed, but what if I want to charge it just to some extent)
I also don't see kindle in task manager > services.
I want to read

And afraid to just unplug