For working with gitlab on our company:
first you must have your ssh key, but how:
you need to have git for that, then open your git bash and then go to your root (type (cd) and then press (enter))
then write this code : ssh-keygen -t rsa
Very well , now what??
you must choose a password for your ssh key , for that it will ask you twice and it is invisible (Do not panic) ((DO NOT FORGET THIS PASSWORD )), After these 2 steps you will have your own ssh key , wait a minute !
why?
go to drive C and Users and maybe (your name or public) but it is mostly the name of your computer or even your name
then you must have .ssh file
open it
congratulations you got it.
now open id_pub with notepad and then copy it and then go to company`s gitlab and in setting add your ssh key .