Microsoft Sudoku has once again lost my progress on daily challenges. Please advise when this issue will be fixed and my progress will be restored.

This has been an ongoing problem on Microsoft Sudoku for a very long time. There are threads that date back over a year with this problem. Microsoft has opted not to fix the problem or post a maningful solution for those of us that encounter this glitch. Obviously there is no incentive for them to fix it. They are rewarded with additional ad revenue every time thousands of patsies are duped into playing the same games over and over.

Since the company and its employees have financial incentive to perpetrate this problem, does it constitue a violation of Federal Wire Fraud 941. 18 U.S.C. 1343? I have made other posts on this thread that never get posted.

FYI: I have tried all the remedies that people post. If they work at all, it is very short lived. The problem keeps coming back

Sorry it did not work for you. Perhaps I should hav mentioned that this solution only worked after following earlier advice on this question which I repeat here:

Open the File Explorer and paste the following into the address bar to go to a specific location on your computer:

%userprofile%\AppData\Local\Packages\Microsoft.XboxIdentityProvider_8wekyb3d8bbwe\AC\TokenBroker

Delete any accounts and cache folders that you can see at this location.  

This restored my game progress history for the month to the point that I lost my scores. I have also unistalled any thing related to the Xbox app. This does not appear to impact any of the other MS games like Solitaire.

The message that I get after a wait reads something like RESTART REQUIRED as a banner followed by a message that the game has lost sync. There is a large button to press labelled RESTART. I have had the same message come up on my Android phone version of the game so it does not seem device specific. Good luck.

Ian-AP, THANK YOU for your solution! It worked for me.

FIRST I deleted the Sudoku app. (Before this mess started I played Sudoku Daily Challenge for months.)

THEN Open the File Explorer and paste the following into the address bar to go to a specific location

on your computer:

%userprofile%\AppData\Local\Packages\Microsoft.XboxIdentityProvider_8wekyb3d8bbwe\AC\TokenBroker

THEN   Delete any accounts and cache folders that you can see at this location.  

THEN   I have also uninstalled any thing related to the Xbox app. This does not appear to impact any of the other MS games like Solitaire. (As I recall most of my issues started when Sudoku was tied into Xbox)

FINALLY I reinstalled MS Sudoku and it ran properly!

AND Anytime something about installing an Xbox-something comes up I ignore it.

Thanks again, Dave

I have found by chance, a work around that works for me. I use a win11 pc to play the game but also have it loaded on an android mobile (cell) phone. Both installs are logged into MS Sudoku with the same account username and password. After completing 1, 2 or all 3 of a day's daily challenges depending on how much time I can spare and I want to leave the game, I click 'Done' but leave the games page loaded in the background. If you use a VPN to reduce adverts,, switch it off temporarily and then open the game on the android device. and select a challenge that is not completed already. At this point I get a large pop up headed RESTART REQUIRED follwed by the message 'Microsoft Sudoku is out of sync and must be restarted' below this is a large blue button marked OK. Clicking on this updates the android device. with the ticked but unsaved games from the W11 PC. The PC simultaneously saves the completed ticked games.

A word of caution the ad blocker in my VPN stops the sync from working so I switch it off. I have also followed the helpful advice earlier in this thread including removing Xbox from the W11 PC. Also, if all of the days challenges have been completed on the W11 pc the process behave slightly differently and the Restart Required pop up appears on the window version. Curious and I am still trying to fully understand why this works for me 90% of times. If anyone finds a better solution please do share.

Good luck to all.

Hi, Please report this to the Microsoft Casual Games Team, the more who report it maybe more will be done to fix it. Open Sudoku, Menu (top left hand corner) right to the bottom you'll find 'Support', Fill in the form with as much detail as possible and send.

An automated answer will arrive but within a day you'll get a reply and follow the instructions and pray?