iPhone 11 will not boot

Ok so my son gave me his Iphone 11 now that he has upgraded. Unfortunately this is the first apple product I own and my first. so he explained to me that I needed to download Itunes to my computer so I can factory reset and download 16.4 ios. So I downloaded Itunes and started the update, but I did not factory reset it. Well it started the update download and it got about 7/8ths completed then all of a sudden an error message came up (I don't remember what the code number was) and the download stopped. Now thew phone wont boot and is stuck on a screen where it shows a usb cord and apparently I am supposed plug it into a computer/laptop. Well when i do so nothing happens probably because I don't have a mac I only have a pc please help me get this phone running properly thank you.

[Edited by Moderator]