taking up more space while downloding

It may need room for temporary files that it will remove after the installation. Also you should always have some free space on the computer so that it has a place to swap files. If your hard drive is completely full you will probably have issues with
the computer freezing up on you

ok, now where it pops up with the disc on home screen on the home screen go to game add on through that and downlod five more

Ok, you want the reasons why modern games take up more space?

Ok here are the reasons:

1 All of those high res textures that we all love, they take up a load of space.

2 Uncompressed audio files also take up huge amounts of space.

3 High res movie files take up more space

Basically that's the reason, we all want bigger, shinier, louder, but we don't want the games to take up more space.

I remember playing the demo to the original Duke Nukem 3D on my old 486 PC, it came on 3 floppy discs (that's 1.4 MB per disc kids) so there we go, in a little over twenty years we've gone from under 10MB to over 50GB.

Hello there!
My name is Jonny and I will be assisting you today!

First, thank you so much for contacting us regarding your inquiry/ concern.

The operating system and necessary apps will take up space so that is more than likely where the missing space is.

you don't understand, it's not missing space, it's more space, from 22.6% to 22.5% it's more space, how does it free up space by itself

If MS want console gamers to really take to downloding full games they really have to drop the price.