Minecraft Dungeons 2 Error 0064 is preventing some PC players from getting past the game's Microsoft/Xbox login, particularly on Steam. There doesn't appear to be one universal fix, but the strongest results so far point toward the account-linking and Xbox authentication chain rather than the game installation itself.

Jump To Section:
Best Error 0064 Fix
Update Xbox App and Game Bar
Sync Windows Date and Time
Try Windowed Mode
Reset the Microsoft Store
Other Error 0064 Fixes

Link Steam to Your Xbox Account First

If you're playing Minecraft Dungeons 2 through Steam, the first fix I'd try for Error 0064 is manually linking your Steam account through the Xbox app.

This has already fixed 0064 for multiple players who could launch the game but couldn't get through the account connection.

Link Steam to Xbox
• Open the Xbox app on Windows
• Sign in to the Microsoft/Xbox account you want to use
• Click your profile name in the top-left
• Open Settings
• Find the account linking section
• Link your Steam account
• Close Minecraft Dungeons 2 and launch it again

Even if you've already signed into a Microsoft account elsewhere on Windows, I would still check the Xbox app directly. Error 0064 appears when the game reaches the login stage, so having Steam and Xbox explicitly connected removes one of the biggest failure points.

If Steam is already linked, don't immediately unlink everything. Move through the next fixes first.

Update the Xbox App and Xbox Game Bar

The next thing I'd check is whether both the Xbox app and Xbox Game Bar are actually up to date.

These Windows components do not always update at the same time as Steam or Minecraft Dungeons 2, and outdated versions have been associated with the same login problems.

Check for Xbox Updates
• Open Microsoft Store
• Check for an Xbox app update
• Check for an Xbox Game Bar update
• Install anything pending
• Open the Xbox app afterward
• Confirm you're still signed in
• Restart Minecraft Dungeons 2

One player who was stuck on the sign-in process reported getting through after restarting the game with the Xbox app and Game Bar open and properly signed in.

Fix Your Windows Clock and Time Zone

If the Xbox account setup looks correct but Error 0064 remains, check Windows date, time, and time zone.

An incorrect system clock can interfere with authentication sessions, and at least one player who exhausted several other fixes found that their Windows clock was wrong before the game finally authenticated correctly.

Sync Windows Time
• Search Windows for Change the date and time
• Confirm the correct Time Zone
• Enable Set time automatically
• Use Sync now under additional settings
• Restart the game after the clock updates

This is worth checking even if the displayed time looks close. Authentication services can be much less forgiving of clock mismatches than ordinary applications.

Try Launching Minecraft Dungeons 2 in Windowed Mode

Windowed mode sounds unrelated to a login error, but several launch-day players reported that switching away from fullscreen was what finally let the account-linking screen work.

If you can't reach the in-game display settings reliably, you can try forcing windowed mode through Steam.

Force Windowed Mode on Steam
• Right-click Minecraft Dungeons 2 in your Steam Library
• Open Properties
• Find Launch Options
• Enter -windowed
• Close Properties
• Launch the game again

This isn't as logical a fix as correcting the Xbox account connection, so I wouldn't start here. But multiple players who had already tried the more obvious authentication fixes reported success after forcing windowed mode.

Reset the Microsoft Store Cache With wsreset

Another useful troubleshooting step is clearing the Microsoft Store cache, especially if the Xbox app or Microsoft authentication components are behaving strangely.

You can do this with the built-in Windows Store reset command.

Reset Microsoft Store
• Press Windows Key + R
• Type wsreset.exe
• Press Enter
• Let Windows complete the reset
• Reopen the Xbox app
• Confirm you're signed in
• Try Minecraft Dungeons 2 again

I would combine this with the date/time check rather than treating either one as a magic single fix. One reported successful setup used windowed mode, wsreset, and a corrected Windows clock together.

Do Not Run Minecraft Dungeons 2 as Administrator

If the game asks for a Windows UAC prompt every time you launch it, check whether the executable has been forced to run as administrator.

Running the game elevated can interfere with the way Steam and Xbox authentication communicate. This has been associated more directly with Error 0029, but both codes are appearing around the same account-linking process.

Disable Run as Administrator
• Find the Minecraft Dungeons 2 executable
• Right-click it and open Properties
• Open the Compatibility tab
• Disable Run this program as an administrator if enabled
• Apply the change and relaunch through Steam

I would launch the game normally through Steam afterward rather than directly through the executable.

If account linking looks correct but the login session itself may be stuck, refresh it.

Sign out of the Microsoft account used by Minecraft Dungeons 2, close the relevant apps, then sign back into the same account before restarting the game.

Also make sure the Xbox app isn't quietly signed into a different Microsoft account than the one you're attempting to use in Minecraft Dungeons 2.

Repair the Minecraft Launcher if You Still Get Error 0064

Windows can repair the Minecraft Launcher without requiring a full reinstall.

Repair Minecraft Launcher
• Search Windows for Minecraft Launcher
• Right-click it and open App Settings
• Select Terminate
• Select Repair
• Reopen the launcher after Windows finishes

This is farther down my list for Steam players because the account-linking fixes have stronger direct reports behind them, but it is still worth trying before reinstalling the entire game.

Try These Last if Error 0064 Still Won't Go Away

If you've already linked Steam and Xbox, updated the Windows gaming apps, synced your clock, cleared the Store cache, and tested windowed mode, there are a few remaining options.

Last Error 0064 Fixes to Try
• Fully restart the PC rather than only restarting the game
• Restart Minecraft Dungeons 2 and retry the login
• If your Steam display name uses non-Latin characters, temporarily try a Latin-character name
• Repair the Minecraft Launcher
• Reinstall Minecraft Dungeons 2 only after the faster fixes fail

The Steam-name workaround is much less established than the Xbox linking and windowed-mode fixes, but at least one player using Cyrillic characters reported that switching the Steam name to Latin characters resolved Error 0064.

I would leave reinstalling for last. Error 0064 appears closely tied to authentication, account linking, or Windows gaming services for many affected players, so downloading the entire game again may accomplish nothing if the underlying login problem is unchanged.

Try the Error 0064 Fixes in This Order

If I were troubleshooting Minecraft Dungeons 2 Error 0064 from scratch, I would use the shortest route first rather than randomly changing Windows settings.

Best Troubleshooting Order
• 1. Link Steam to your Xbox account
• 2. Update Xbox app and Xbox Game Bar
• 3. Confirm the Xbox app is signed into the correct account
• 4. Sync Windows date, time, and time zone
• 5. Launch with -windowed
• 6. Run wsreset.exe
• 7. Make sure the game is not running as administrator
• 8. Sign out and back into the Microsoft account
• 9. Repair Minecraft Launcher
• 10. Reinstall only if nothing else works

For Steam players specifically, I'd put the Steam-to-Xbox link at the top of the list. It directly fixed Error 0064 for affected players, while the other methods are better treated as fallback fixes when the account connection already looks correct.

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