ljmf00 [1] filed a deletion request for winusb [2]:

buzo commented on 2018-09-23 11:07 (edited on 2018-09-23 11:09 by buzo) This is unmaintained upstream. There is a fork called WoeUSB, which is available on AUR, too.

[1] https://aur.archlinux.org/account/ljmf00/ [2] https://aur.archlinux.org/pkgbase/winusb/