Today when trying to install Linux beside my Windows, I found these two extra boot devices:
I suspected, and entered the UEFI, where I found this:
Then I remembered, once upon a time I had Ubuntu installed. I was not able to boot into Windows so changed the boot order.
But now I want to get rid of it. Is it deletable/removable? Because I want to keep things clean before installing another system beside current installation of Windows.