Microsoft Sudoku Won't Open in Windows 11 and 10: Fix It

If Microsoft Sudoku will not open, crashes the moment it appears, or sits on the loading screen forever, start here: go to Settings → Apps → Installed apps, find Microsoft Sudoku, click the three dots beside it, open Advanced options, and press Repair. Repair rebuilds the app and keeps your progress, so it costs you nothing to try. Do not press Reset yet — that one clears the app's local data. And if the game opens but hangs on Loading and never arrives, the app is probably fine and something on your network is quietly blocking it. Your streak is almost certainly safe.

A 418-day streak is not "just a game"

The lady who brought the laptop into Jake's shop said the number twice before anything else. Four hundred and eighteen days — her run of daily sudoku challenges, most of them done with the first cup of tea of the morning. On Tuesday the game stopped opening.

Jake nearly said it's only a puzzle app, we'll reinstall it. Lucky he didn't, because a reinstall in the wrong order is how you turn a fixable morning into a genuinely lost streak. What she wanted to know was whether fourteen months still existed. It did: if you were signed in while you played, your streak is in your Microsoft account, not on the laptop.

"So why has it broken at all?" Jake asked Ethan later. "It's sudoku. Nine numbers in a square. My card machine has more moving parts."

"The sudoku is," Ethan said. "The app around it is a Store package that authenticates against Xbox services, syncs a cloud save, and fetches an advertisement before it lets you play. Any one of those going quiet gives you the same blank loading screen."

"An advert? For a puzzle?"

"That's how the free version is paid for. And it's the part nobody checks, which is why half the people with this reinstall the game twice for nothing."

Which of these is actually happening to you?

These look like one problem and they are five. Picking the right row saves an hour, and stops you doing something destructive to fix something harmless.

One shortcut: open Microsoft Solitaire Collection too, if it is installed. If both games fail the same way, the cause is almost never the game — it is the account or the network underneath both, and you can skip the app repairs below.

Repair first, because it cannot cost you anything

Store apps have two buttons buried further into Settings than they should be, and the difference between them is the most important thing here.

On Windows 11

Press Windows key + I, then:

The three dots are the small vertical row at the end of the app's row; a long press does the same on a touchscreen. The section is headed Reset, which is unkind, because the first button under it is the gentle one. Repair is what you want.

On Windows 10

Same idea, one page different: Settings → Apps → Apps & features, click Microsoft Sudoku to expand it, then Advanced options → Repair. Unless we say otherwise, every fix here works the same on both.

What Repair actually does

It re-lays the app's program files from the copy Windows keeps and leaves the data folder alone — replacing the machinery without emptying the drawers. A tick appears when it finishes. No restart, no progress bar, no report. Launch the game and see.

"And if the tick appears and it still won't open?"

"Then the app files were never the problem," Ethan said, "which is worth knowing. Most people jump to Reset there and it's the wrong instinct. Reset is the most over-recommended button in Windows — it's the one that takes something from you, and nine times in ten it isn't what was broken."

The same pair exists for every Store app, as in our guide to resetting the Groove Music app.

Reset: what it takes, and what it cannot touch

First, though: none of this is your fault. You did not break the game by playing it. Store apps sit on servers, accounts and drivers that move underneath them, and when one shifts the app stops working for reasons unconnected to anything you clicked. People apologize to Jake for this constantly and never need to.

Where your streak actually lives

• On the PC: the puzzle currently open, local preferences, and anything you did while signed out.
• In your Microsoft account, in the cloud: daily challenge history, your streak, your statistics, your progress through the harder sets.

That split is why two people do the same thing and get opposite results. Reinstall while signed in and it all comes back; reinstall after three weeks played signed out, and those weeks were only ever on the disk you just wiped.

It also explains the commonest version of "my progress vanished", which is not vanished progress at all. It is the wrong account — a family member signed into the Store, or a work account and a personal one on one machine. The game is faithfully showing somebody else's empty history. Sign out inside the game, sign back in as yourself, and wait.

What we cannot do for you

If the playing genuinely was done signed out, there is no cloud copy to bring back and no support ticket recovers it. That is hard to read when you have just lost a long run, and it would be worse to pretend otherwise. What you can do is stop it happening twice: sign in once, check the account name in the game's settings, and the cloud takes over from then on.

The loading screen that never ends: it is usually the advert

Microsoft Sudoku is free because it is ad supported, and the ad component is not decoration bolted on afterwards — it loads as part of starting the game. If the request goes out and nothing comes back, the game does not crash and shows no error. It waits. Politely. Forever.

So the symptom is a loading screen with no message, which every guide reads as "broken app" and treats with repairs that cannot help.

Who blocks it without meaning to

• A Pi-hole or similar network-wide blocker — it filters apps as well as browsers, and it is the likeliest culprit if you run one.
• A filtering DNS service, because pointing your router at an ad-blocking provider covers app traffic too.
• A VPN. Many bundle ad blocking, and some route you through a country where the ad network answers differently.
• Router parental controls, business firewalls or a security suite's web shield, where category filters routinely include "advertising".

What will not cause it: a browser extension. AdBlock, uBlock and their relatives only touch pages inside the browser, and Sudoku is an app.

Prove it in two minutes, changing nothing permanently

1. Turn off any VPN completely and try the game.
2. If you run a Pi-hole or a filter, pause it for five minutes from its own dashboard.
3. If you are unsure what is running, tether the laptop to your phone's hotspot — that bypasses your router, your DNS and your whole network at once.

Loads on the hotspot but hangs on your home Wi-Fi? You have found it, and no amount of app repairing was going to help. Hangs on both? The network is innocent and the sign-in layer is next.

When it freezes mid-puzzle instead

Same cause, later. The advert panel refreshes while you play, and a failed refresh can leave it black and take the board's responsiveness with it — clicks land nowhere, the timer keeps running. People have reported this for years.

The uncomfortable but honest option: pay the ads away

"Hang on," Jake said. "The fix for her free game is to stop blocking adverts, or pay to be rid of them? That's being charged for somebody else's bug."

"It is, a bit," Ethan said. "I'd still rather she knew than reinstalled Windows over it, which is what the last person in here was told to do."

Microsoft sells a Casual Games Premium subscription that removes the adverts. Two things are not obvious at purchase: it is generally sold per game rather than across the collection, and it is widely reported as tied to the device it was bought on. A dollar or two a month in most regions — but check what yours covers.

The Xbox sign-in layer nobody mentions

This surprises people every time. Microsoft Sudoku signs in through Xbox. Not the console — the underlying Xbox identity service Microsoft uses for game accounts and cloud saves across everything it publishes, including the quiet little puzzle games.

"My customer has never owned an Xbox in her life," Jake said.

"She doesn't need to," Ethan said. "Microsoft publishes the game, so it authenticates on the gaming side of the house. That's where the streak lives too, which is why the loading screen and the sign-in problem are so often the same one."

Sign out and back in, inside the game

Do this in the game, not in Windows. Open Microsoft Sudoku, find the profile icon at the top and sign out. Close the game completely, open it again, sign back in with the account you actually play on. That one move fixes a surprising share of both the hanging loading screen and the missing-streak complaint, because it forces a fresh identity.

Check the Microsoft account itself is healthy

If Microsoft wants something from the account — a verification, a re-entered password, a security check — then apps that authenticate silently in the background fail silently too. Open Settings → Accounts and look for a banner asking you to fix or verify something; our post on the "you need to fix your Microsoft account" message covers what it wants.

The same layer surfaces elsewhere: the reason Xbox refuses to upload a custom profile picture is very often this identical problem wearing a different error message.

Clearing the sign-in token cache

If that did not do it, Windows may be holding a broken token and handing it back every time. Close the game, press Windows key + R to open the Run box — a small single-line window for typing a location or command — and paste this:

%LocalAppData% is shorthand for the settings folder inside your own profile, so this always lands in your account. Inside, delete the folders named Accounts and Cache. Nothing of yours is in them — they are credentials Windows rebuilds next time you sign in. If the path does not open, browse %LocalAppData%\Packages for the folder beginning Microsoft.XboxIdentityProvider. Then restart and sign in.

One more on a shared PC: the Store can be signed into one account while the game is signed into another, each correct on its own terms. The game's account decides what history you see.

Clearing the Store cache with wsreset

Press the Windows key, type wsreset, press Enter. A blank black window appears and does nothing for roughly ten seconds, then closes on its own and the Microsoft Store opens. That is what success looks like — no message, no percentage, no summary. The blank window worries people every time.

It empties the Store's cache: the temporary files it keeps about apps, updates and licenses. Despite the name it does not uninstall anything, sign you out, or touch your game progress. Run it when the Store misbehaves or a game refuses to update. If the Store throws a code of its own, our write-up of the 0x8000ffff Store error is the place to go — often the account layer complaining again.

Reinstalling, in the order that keeps your streak

Reinstalling is not the first thing to try, and not the disaster people fear either — provided the sequence is right.

1. If the game opens at all, open it and confirm you are signed in, and leave it a minute so anything unsynced can go up.
2. Uninstall from Settings → Apps → Installed apps → three dots → Uninstall.
3. Restart the PC, which lets Windows finish clearing the old package instead of reinstalling on its remains.
4. Open the Microsoft Store, search for Microsoft Sudoku, install it. There is nothing to pay.
5. Sign in inside the game with the same account, then wait a minute before looking for your streak.

If the Store is unfamiliar, our walkthrough of installing an app from the Microsoft Store covers the basics.

If the uninstall button will not cooperate

Occasionally Windows refuses to remove a Store game through Settings. PowerShell — the command-line tool built into Windows — can remove the package directly. Right-click Start, choose Terminal (Admin) on Windows 11 or Windows PowerShell (Admin) on Windows 10, then run:

For Solitaire the package is Microsoft.MicrosoftSolitaireCollection and the command is otherwise identical. The vertical bar is a pipe: it hands what the first command found to the second to act on. Then reinstall from the Store.

This is a normal, supported way to remove a Store app — not the registry surgery the 2017 version of this article described for that January breakage. That was the right tool for that fault at that moment, and a heavier instrument than today's problem needs.

The Store apps troubleshooter, and what replaced it

Nearly every article on this problem tells you to run the Windows Store Apps troubleshooter. On Windows 11 in 2026 a lot of readers will go looking, not find it, and assume they are in the wrong menu. You are not.

On Windows 10 it is still there:

On Windows 11, Microsoft has been dismantling the old engine behind those wizards. Settings → System → Troubleshoot → Other troubleshooters increasingly hands you to the Get Help app instead, and the Windows Store Apps entry is missing entirely for many people.

"So the advice everyone repeats points at a button that isn't there any more," Jake said.

"For a growing number of machines, yes," Ethan said. "And honestly it was never the step that fixed this one. It's good at download and install faults. A game that installs perfectly and then hangs on a loading screen was never its department."

Graphics drivers, overlays and the instant crash

One symptom points elsewhere entirely: the window appears and vanishes inside a second, every time, with no loading screen and no error. That is a rendering failure. Microsoft Sudoku is drawn with hardware acceleration, so if the graphics driver is broken, half-updated or being interfered with, the app dies as it tries to draw itself.

• Update the display driver. Our guide to updating drivers in Windows covers getting the manufacturer's version rather than the generic one.
• If the crashes began right after a driver update, roll it back. Newer is not automatically better.
• Turn off gaming overlays. The Xbox Game Bar overlay, and the equivalents from graphics vendors and chat apps, inject themselves into games — sometimes into a sudoku app that never asked.
• Black flickers, or a screen that goes dark and recovers, mean this is bigger than a game: see the display driver stopping and recovering.
• If nothing else fits, try a clean boot using our guide to clean booting Windows. If the game suddenly works, something in that pile was the cause.
• Two long shots worth ten seconds each: the gaming services do have outages, so if two devices fail at once check Microsoft's service status page; and a PC whose date has drifted badly can fail to authenticate while looking healthy.

Microsoft Solitaire Collection: the same app in different clothes

If you came here for Solitaire, everything above applies unchanged. Solitaire, Sudoku, Minesweeper, Mahjong and the word games share a studio, a framework, the same advertising and the same Xbox layer. So both broken at once means the cause is underneath both — go to the account and the network. One broken, one fine points at the app, so Repair first. Your Solitaire streak lives where your Sudoku streak lives, at the same limited risk from a Reset.

Solitaire has one quirk of its own: on some machines it was never really removed, only hidden, which is why it can reappear after a feature update. We covered that in our post on getting Solitaire and Minesweeper back. The underlying point — these games are a Store package like any other, not part of Windows — is why all of this behaves the way it does.

Playing in a browser instead, which is not giving up

Sometimes the app will not be fixed today — an old machine, a driver nobody maintains, an evening you would rather not spend on it. Microsoft runs a browser version of Microsoft Solitaire Collection on its own casual games site, needing nothing installed, which sidesteps every app-level fault here. For Sudoku we could not confirm an official browser edition, so we will not promise you one. Either way, playing elsewhere for a few days costs you nothing: your history is in your account, waiting.

"That's the bit I'd have told her first," Jake said. "She wasn't asking me to repair Windows. She was asking whether tomorrow morning was ruined."

"Then lead with that. Tell her the account is safe, and take your time with the machine."

Windows 11 and Windows 10: what actually differs

Less than you would expect, which is worth saying because readers on one version dismiss guides written for the other.

One Windows 11 detail that trips upgraders on any guide: the right-click menu is condensed now, and the older full menu lives under Show more options.

And one honest line for anyone still on Windows 10: it reached end of support on 14 October 2025. Without Extended Security Updates it gets no security patches, though Microsoft extended the consumer ESU program into 2027 and enrollment runs from Settings → Windows Update — details in our post on when Windows 10 and 11 support ends. Your sudoku keeps working either way.

Questions people actually ask about this

Why will Microsoft Sudoku not open on Windows 11?

Usually the app itself is intact and something it depends on is not. Start with Repair: Settings, Apps, Installed apps, the three dots beside Microsoft Sudoku, then Advanced options. Repair rebuilds the app without touching your progress.

What is the difference between Repair and Reset for Microsoft Sudoku?

Repair rebuilds the app files and leaves the app data alone. Reset takes the app back to the state it was in the day it was installed, clearing local data and settings. Repair is the safe one and always comes first.

Will I lose my Sudoku streak if I reset the app?

If you were signed in while playing, your streak, stats and daily challenge history sit in the cloud against that Microsoft account and come back when you sign in again. A Reset clears the local copy: the unfinished puzzle, and anything played while signed out. Sign in first, let the game sync for a minute, then reset.

Why does Microsoft Sudoku get stuck on the loading screen?

Because it is waiting for something on the internet that never arrives. Two things happen before the board appears: the sign-in handshake with Microsoft account and Xbox services, and the first advertisement request. If either is blocked or slow, the game does not crash and shows no error.

Can an ad blocker or a DNS filter stop Microsoft Sudoku from loading?

Yes, and almost no guide mentions it. The free game is ad supported and the ad component loads before you get to play. A Pi-hole, a filtering DNS service, a blocking VPN or a router with parental filters can refuse those requests, and the game sits on Loading.

How do I reinstall Microsoft Sudoku from the Microsoft Store?

Uninstall it from Settings, Apps, Installed apps, restart the PC, then open the Microsoft Store, search for Microsoft Sudoku and install it again. Afterwards sign in inside the game with the same Microsoft account and give it a minute to pull your history back down.

What does wsreset do and is it safe?

It clears the Microsoft Store cache. Press the Windows key, type wsreset and press Enter. A blank black window sits there for about ten seconds, then closes and the Store opens by itself, which is what success looks like. It does not uninstall anything, does not sign you out and does not touch your progress.

Why does Microsoft Sudoku keep asking me to sign in?

These games authenticate through Xbox services, and Windows keeps those tokens in a cache belonging to the Xbox Identity Provider. When a token goes stale the game asks again, fails again, and can hang rather than show an error. Signing out and back in inside the game usually clears it.

Where is my Microsoft Sudoku progress actually stored?

In two places at once. The puzzle open right now and your local settings sit on the PC. Your streak, completed daily challenges and statistics live in the cloud against the Microsoft account you were signed in with.

Does the Windows Store Apps troubleshooter still exist in Windows 11?

Not reliably. Microsoft has been retiring the old troubleshooting platform, so on current Windows 11 builds the Troubleshoot page often hands you to the Get Help app instead, and the Windows Store Apps entry is missing for many people. On Windows 10 it is still under Update and Security, Troubleshoot, Additional troubleshooters.

Why does Microsoft Sudoku crash after a Windows update?

Usually because the update replaced something the app leans on, most often a graphics driver, while the app still expects the old one. A restart followed by a Repair fixes most of these.

Can a graphics driver make Microsoft Sudoku crash on launch?

Yes. The game is drawn with hardware acceleration, so a driver that is broken, half updated or being hooked by an overlay can take the window down the moment it tries to render. Update the display driver and turn off any gaming overlay.

Do the same fixes work for Microsoft Solitaire Collection?

They do, and that is not a coincidence. Solitaire, Sudoku, Minesweeper, Mahjong and the rest come from the same team, share a framework, carry the same advertising and sign in through the same Xbox layer.

Can I play Microsoft Sudoku in a browser instead?

Microsoft runs a browser version of Microsoft Solitaire Collection on its own casual games site, so Solitaire players have an official route that needs nothing installed. For Sudoku specifically we could not confirm an official browser edition, so treat that as unproven rather than promised.

What happened to the 418 days

They were fine. All of them.

The laptop sat behind a router with an ad-filtering DNS setting a relative had switched on eight months earlier, and something on the ad side had shifted that week so a request which used to fail fast now failed slowly. Nothing was broken, and every fix she had been told to try was aimed at a part of the system that was working perfectly. Jake proved it in four minutes with his phone's hotspot: instant on mobile data, stuck on the house Wi-Fi.

"I nearly reinstalled it," he said afterwards.

"Most people do," Ethan said, "and it seems to work — the network hiccup passes on its own and you learn the wrong lesson. Ask what the app is waiting for before you assume it's damaged. Almost everything on a modern PC is waiting for something."

Which is the honest summary of this page. The four things this game waits on — its own files, a driver, an account, a network — can each be checked in a couple of minutes without risking anything. Start with the cheap ones, and remember your streak is not stored on the machine that is misbehaving.

Revision note. Originally published 30 January 2017, when a Windows 10 update that month really did break Microsoft Sudoku for a lot of people and re-registering the game was the fix that worked. That update has been retired for years and the game rebuilt more than once since — but people still arrive here with a Sudoku that will not open, so on 9 August 2026 this was rewritten to answer the question as it stands today. New in this version: what a Reset actually costs you, where your streak really lives, the Xbox sign-in layer these games quietly depend on, the ad-blocking and DNS cause behind the endless loading screen, and the plain note that the Store apps troubleshooter everyone still recommends has largely gone from Windows 11. If your game is still not opening, please do write in through the contact page and tell us what you see and roughly when it started — there is a good chance it is a cause we have not met yet, and this page has always grown from what readers tell us. And if you have lost a long streak: we are sorry, genuinely. It was not your fault, and in most cases it is still sitting in your account, waiting for you to sign back in.