how to install windows server 2016 os and sign in on oracle virtual box

i actually made this video how sign in account in server operating system
here ctrl+alt+delete will not work….to sign in account key is-ctrl+delete(right side)…here right side ctrl called host key
because i faced some problem when i wanted to sign in so i thing i should tell you
server 2016 iso image-https://getintopc.com/softwares/operating-systems/windows-server-2016-standard-jan-2021-free-download-6458582/

source

windows server 2016