Microsoft To Do Not Syncing Between Devices
Microsoft To Do is a popular cloud-based task management tool.
By creating a Microsoft To Do List, you’re able to manage your tasks more organized.
However, recently many users reported that they have encountered the Microsoft To Do not syncing Windows issue.
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Cannot sign into the Microsoft account because of the login parameter is empty or not valid error?
Read this post to get several feasible solutions.
Solutions to Microsoft To Do Not Syncing Windows
Solution 1.

First, right-click theWindows logobutton to selectTask Manager.
Second, find and selectMicrosoft To Do, then click theEnd taskbutton.
Finally, restart Microsoft To Do and find out if the task lists are synchronized normally.

See Also:How to Fix End Task Not Working Windows 10 [5 Solutions].
In this case, you oughta check for Microsoft To Do updates manually.
Just initiate the Microsoft Store by using the Windows search box.
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Then clickLibrary>Get updates.
Want to disable automatic updates for Microsoft Store apps but do not know how?
Now read this post to get several useful ways.

Solution 3.
Allow Microsoft To Do to Run in Background
Press theWindows + Ikeyboard shortcut to access Windows controls.
ClickPrivacy>Background apps.
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verify the switch next toMicrosoft To DoisOn.
Finally, cycle your machine and look to see if the issue has been resolved.
Solution 4.

On the home page of Microsoft To Do, click theprofile iconto selectSettings.
After that, clickSign outto exit and then log back in.
Solution 5.
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If this fails to work, you might reset the program.
In the Windows search box, typeMicrosoft To Doand right-click it from the best match result to selectApp prefs.
In the new window, scroll down to click theRepairbutton.
Then Windows will start diagnosing and fixing issues automatically.
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Try the approaches above to bring Microsoft To Do back into sync.
Should you have any doubts about the solutions, feel free to contact us via[email protected].