This is a conversation i had with Microsoft support, can someone please help!
Hi, thanks for visiting Xbox Support! I’m Joseph.
12:51 Joseph
Hello!
12:51 Me
Hello
12:51 Joseph
I do hope you are doing well out there today, how may I assist you?
12:51 Me
Im ok thank you. I bought a game code from game for Forza horizon 3 blizzard mountain, its installed but not downloaded.
12:52 Joseph
May I ask who I am chatting with today? So I can address you properly.
12:52 Me
Curtis
12:53 Joseph
Oh I see ! Curtis, I will do my best to assist you with this.
12:53 Joseph
I hope you don’t mind, May I ask when did you able to purchased the game?
12:55 Me
I bought FH3 on 31/12/16 and i purchased the DLC on 14/01/17
12:56 Joseph
Oh I see! May I know if you have tried some steps to troubleshoot it?, Just to Isolate further the Issue Curtis 
12:58 Me
I have done all the troubleshoot steps as i spoke someone at Game and they sent me a link for what to do, nothing has worked so far.
12:59 Joseph
Oh I see! I understand how you feel, Curtis. Kindly tell me more what are those steps that have you tried and why the voice support to this at your end. Cool?
13:02 Me
I have restarted the xbox, in the game i have tried to open the DLC and nothing seems to work and not sure what to do next.
13:05 Joseph
Oh I see! Sorry for the delay, Can you hold on as I check your account here, will that be okay?
13:08 Me
Thats fine
13:09 Joseph
Before I will check it, Where did you purchased the DLC that you want to used? Is this a code , Curtis?
13:10 Me
I purchased the DLC code from Game in waterlooville.
13:10 Joseph
Oh I see! Thanks! Just for further Isolation what’s the name of the DLC that you had purchased Curtis?
13:12 Me
On the recipe it says, FH3 blizzard mountain pack
13:13 Joseph
Oh I see! Thanks a lot for the information Curtis, I appreciate it, Don’t worry I will assist you the best as I can :), Hold on for a moment please as I check it here now.
13:14 Me
Thank you
13:16 Joseph
As I check you account that you have redeemed the code for the game FH3 right and it had the DLC on it and it is correctly installed but not downloaded due to some reason that had on your connection, right ?
13:19 Joseph
Curtis, for me to Isolate this issue of your DLC , We will need to do some troubleshooting steps, I hope you don’t mind will be that okay for you?
13:22 Me
As i aware the connection was optimal.
13:22 Me
Thats okay
13:22 Joseph
Can you remove your account from your console and after that do a hard reset, will you need some steps to do it Curtis?
13:26 Me
So if i do that will anything that i have downloaded and bought disappear.
13:27 Joseph
Nope! No worries, Curtis
13:30 Joseph
As long the game was being saved to your account it will not allow to delete all your games and points that you have on it,
13:31 Me
I have removed my account
13:31 Me
Whats next?
13:32 Joseph
Great! after that, please hard reset the console by pressing the power button for 5seconds or till it turn itself off. Unplug everything from your console including all accessories, cables from the TV, Kinect, Hard drive or USB Flash Drive(if there is any) and the Power Supply. Let’s leave it like that for 2 minutes.
13:34 Me
Ok, doing that now.
13:34 Joseph
Great! and after 2 minutes, kindly reconnect and turn the console back on.
13:35 Joseph
And after that log in your account from your console and then re-download your it here’s the process: Scroll left on the Home screen and click on the Avatar icon> select add & manage> add new > enter email address then password> accept service agreement.
13:37 Me
I have done all that, whats next?
13:42 Joseph
Kindly go to games and apps and look for the Forza 3 press menu on the controller and click on the manage game.
13:45 Me
I have gone into games and apps, found FH3 and pressed the menu button
13:46 Joseph
Great! Kindly check if you have the option to install the content.
13:49 Me
On the screen i have option to uninstall FH3 or FH3 blizzard mountain.
13:50 Joseph
Great! Kindly check it’s in game if you can find the DLC of the game.
13:51 Me
I have found DLC of the game and still have the same problem as i did an hour ago
13:52 Joseph
Thanks for the information.Kindly try to follow the steps below and let me know if it works.
13:55 Joseph
1 - Load up Forza Horizon 3 and get to the “Buy Now” screen for Blizzard Mountain DLC.
2 - Use the Xbox Guide button to go back to the dash and open up the Forza Hub App. Please don’t shut the game down
3 - Open up the Blizzard Mountain is Here! Story on the Forza Hub App.
4 - Press the black “Play Now” button on the first page of the story and then press continue when prompted
5 - Go back to the game and you should now be able to back out of the “Buy Now” screen
13:56 Me
I have followed all the steps that you written down
14:02 Joseph
Can you go back to the in game store then search blizzard mountain and check if you can able to access the content.
14:03 Me
Unable to access content.
14:05 Joseph
Thanks for the information, Curtis if that the case we need to reset your console from factory default here follow the steps bellow:
14:09 Joseph
Restore Factory Defaults: Please go to Settings> System> Console info & updates> Reset console.
14:09 Me
Will this deleted any purchase and or downloadable content i have on the xbox?
14:11 Joseph
Yes! A reminder sorry if I didn’t give you the full detail, when you click the reset for factory defaults it will prompt there to “Keep Games & Apps”.
14:15 Me
If i select “reset and keep my games and apps”, will that also save all the data from games i have on the xbox?
14:19 Me
I have reset my console and have selected "Keep games and apps.
14:20 Joseph
Yes!
14:20 Joseph
Great!
14:20 Joseph
Thanks for doing all the steps, I really appreciate it.
14:22 Joseph
After that I need you to set up again your account and then search again the game and check if you can able to access the content.
14:23 Me
I will let know when i have set up again and searched for game content.
14:24 Joseph
Great! let me know if it works.
14:25 Joseph
How is it going? Curtis.
14:30 Me
Im just loading up the game as we speak/text.
14:31 Me
Same as before.
14:33 Joseph
Oh I’m sorry about that!
14:33 Me
Are there anymore steps that i can take?
14:34 Me
?
14:42 Me
Are you still there?
14:49 Joseph
Oh I see, Thanks for the information, My apologies about this issue of yours Curtis, Since we exhausted all the steps to troubleshoot this Issue for your Forza 3, And based on diagnosis on the steps and my resources here that it was not your console or the connection that might not try not to access the content, it seems that we have already done all possible Troubleshooting steps for you to access the content.
14:49 Joseph
It has the problem with the game itself, Don’t worry cause we do all the things that must done for it. And I’m so thankful that you do all the troubleshooting steps, I recommend to go through the for the game developer on this game Forza form it’s forum and they will help you the steps on how to able to access the content that the game that won’t work.
14:54 Me
Thank you for help.
14:55 Me
Can i have a copy of this chat
14:56 Joseph
No Problem Curtis, I’m glad that we found out the problem of your issue :
This is a conversation that i had with Microsoft support, can someone please help!