Can't get Forza 5 to complete install from marketplace

Yes if I would've gotten the disc I would've stayed offline like I did with my first game. I thought maybe my crappy hughes net satellite internet was the cause so I just came to my dads and am using an Ethernet cable and it's not helping either so I guess
you're right. Wish I would've known before shelling out $50 for it

I had an issue with that last night different game though. I restarted my system and went into the que to restart the download and bam! It was done.

I've tried that too and it will say this may take awhile. And then it will show my storage reduce from 343Gb to 303Gb which is how big it says Forza is but it won't show any progress after an hour. Just continues to say installing. Not even 1%

Well actually now it's showing 1% so maybe im getting somewhere! Haha. I'll update this thread if it completes

Yes I am. I go to queue, highlight Forza, hit the start button, go to manage game, click on Internal Manage all (40.3Gb), then click Uninstall all. Then it says You're about to uninstall Forza Motorsport 5 you can reinstall anytime etc. then I click uninstall.
Then back at queue it says installation stopped and eventually disappears. Then my storage go's back up to 343Gb. Next I can go back up the games and it says ready to install with Forza beneath so I click that then it says this could take awhile to install.
We'll let you know when it's ready to use. So I click install to begin the process again but it never advances. Just continues to say installing with no progress or percentage