The instructions may differ depending on which version of Windows you are on, but I don't have my Windows 8.1 computer near me to test it out.
Unfortunately, this game got updated if your PC is running Windows 10. So... there are 2 platform variants now:
On Windows 8.1:
Microsoft Treasure Hunt (Win 8)On Windows 10:
Microsoft Treasure Hunt (Win 10)On Windows 10, you should only need to sign-out using the
Xbox Console Companion app (or the
beta version). To sign-out, you need to click the Menu button (
=), then click
Settings (cog icon), and then click
Sign out. You'll then have the option to sign-in again using a Microsoft account that was added in the Windows 10 Settings app. You can get to that area under:
Settings -> Accounts -> Email & accounts
Look under
Accounts used by other apps. If your account is not listed here, you may need to click
Add a Microsoft account.
Once you are on the correct account on the Xbox Console Companion app, make sure that
Auto sign-in is turned
On, then load Microsoft Treasure Hunt again.
More information (Windows 10 platform):
Microsoft Treasure Hunt (Win 10) Achievement List RevealedI launched the game today and it's a new game completely?Surprise updateCross-Platform / Version Unlocks