0x80073CF9 error when trying to download Forza 3 or Halo Forge on Windows 10 Anniversary

Error 0x80073CF9 is a severity failure error usually seen on the Windows Store Updates when they fail. ... In some cases, trying to download or update an app through the Windows Store causes the 0x80073CF9 error to appear, which stops all further app downloads and updates.

appuals.com/how-to-fix-windows-10-store-error-0x80073cf9

The problem is Forza Horizon 3 requires the anniversary update or the game gets stuck in a download loop when you try to install it.

forums.forzamotorsport.net/turn10_postst73310_Important-Windows-10-Update.aspx

Here is an article about fixing Code: 0x80073CF9:
Fix Windows 10 error 0x80073CF9

That I think might be able to help you. Let us know

Keep Calm & Game On!

I have the same problem. I just updated to the anniversary edition of Windows 10 and Forza Horizon 3 Ultimate Edition does show in my purchase history. When I click manage, it takes me to my library, and no download option is present as it says "Forza Horizon
3 is part of a bundle."

You're lucky!! I have the anniversary update, and my pc and drivers are fully up to date. I can't even start the download, well I can by going to the Store, and to "My Library", but it downloads to 30MB, then stops with error 0x80073CF9.

No matter what I try I cannot install Forza Horizon 3 Ultimate Edition. I redeemed a code on my XB1, and it's all working there, however looking at my purchase history on the MS website, FH3 is not shown?

Yet, in the Windows 10 Store, Forza Horizon 3 Ultimate Edition is shown as being owned by me, as is the Standard Edition (part of the bundle), yet I have no install option (just a message "only available as part of a bundle").

I'm glad I have the game on the XB1, so was playing late last night, but I'd quite like the game to also work on my PC, for those times when the rest of my family are using the XB1 for something else.