You should be able to use https://my.esri.com/#/downloads and get all the different files for each installation available under your licence agreement.
Under 'My Organizations' choose 'Downloads', then a product then scroll down to 'Developer Tools'
(oops, I chose Desktop 10.5.1, but 10.4.1 is just underneath it)
If you cannot see the options above, contact your licence administrator to enable them for you, or to download them on your behalf.