Looking for logging into the Xbox Install First site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Xbox Install First site. After that you can login as usual with your login credentials.
https://support.xbox.com/en-US/xbox-one/apps/install-my-xbox
https://support.xbox.com/he-IL/games/game-setup/install-games
https://support.xbox.com/he-IL/games/game-setup/install-play-delete-game
https://support.xbox.com/he-IL/games/game-setup/playing-across-multiple-consoles
https://support.xbox.com/he-IL/xbox-one/console/set-up-new-system-solution
https://support.xbox.com/en-AU/xbox-one/errors/error-code-0x803F8001
https://www.youtube.com/watch?v=BolMel59I58
https://www.youtube.com/watch?v=zl2ug57jvYA
https://www.youtube.com/watch?v=l1LBdixki2A
https://www.youtube.com/watch?v=dC4rTsQwNPU
https://play.google.com/store/apps/details?id=com.microsoft.xboxone.smartglass&hl=en
https://www.youtube.com/watch?v=1RDBiOtBnwg
https://www.youtube.com/watch?v=ntnKv01EXIU