Removal of the Achievement tab in guide.

You should be able to remove any games with 0 gamerscore by opening up the guide, going to the leftmost tab and selecting "Achievements". From there, scroll to the game you want to remove and hit X.

ONLY If you have Zero achievements in any game, you can remove it from your history by pressing the guide button, go to the Games & Apps tab, go to achievement, highlight the game and press X to remove from history. The game will always be located in the
download history if you want to download it again, but not the Game History.

(rs_xbox_release_2005_200522-1800)

The 5 guide stabs come with the 2005 update, what is your os version?

If you want to get the update manually:

1. Make sure your console is connected to the internet, and then press the Xbox button  to open the guide.
2. Select Profile & system > Settings > System > Updates & downloads.
3. Under Updates, you’ll see either:
   • Console update available. Select this button to begin your update, or
   • No console update available. This means your console is up to date.

I believe this link may also be helpful to you.

https://support.xbox.com/help/hardware-network/settings-updates/whats-new-xbox-one-system-updates