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Fix Microsoft To Do Web App Not Displaying All Tasks

Guest Writer Oct 1, 2026 868 views

Question details

Users report that some tasks in Microsoft To Do are missing from the web application, even though they synchronize correctly on Windows and Android apps.

Fix Microsoft To Do Web App Not Displaying All Tasks

Product: Microsoft To Do
Device & OS: not provided
Scenario: Accessing synced tasks via the Microsoft To Do web application across different web browsers.
Observed behavior: Tasks fail to load or display in the web app due to browser-specific cache, cookies, or compatibility problems.

Before you start

Ensure you have a stable internet connection and verify that your tasks are successfully syncing on your mobile or desktop applications before troubleshooting your web browser settings.

Solution 1Recommended

Clear Browser Cache and Cookies

Clearing cached data removes corrupted or outdated temporary files that might prevent the web application from loading your tasks correctly.

Outdated cache and cookies can interfere with how web applications load data from the server. Clearing them forces the browser to fetch the most recent synchronization data.

Open Browser Settings

Click the three-dot menu in your browser's top right corner and navigate to Settings.

Clear Browsing Data

Find the Privacy and Security section, select 'Clear browsing data', and ensure 'Cookies and other site data' and 'Cached images and files' are checked.

Restart and Sign In

Close all active browser windows completely, reopen your browser, navigate to Microsoft To Do, and sign back into your account.

Data Safety: Clearing your browser cache will not delete any of your saved tasks, as they are securely stored on Microsoft's cloud servers.

Solution 2

Test in Incognito Mode or an Alternative Browser

Specific browser security settings, ad blockers, or extensions can block the scripts required to display tasks.

Solution 3

Submit Diagnostic Feedback to Microsoft

If the issue persists across all browsers, it may be a server-side account bug requiring Microsoft's direct intervention.

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Frequently Asked Questions

Why are my Microsoft To Do tasks syncing on mobile but not on the web?

This discrepancy usually occurs due to corrupted browser cache or cookies preventing the web app from retrieving the latest server data, whereas dedicated mobile apps use direct API connections that are less prone to these local storage issues.

Can ad blockers or privacy browsers cause tasks to disappear?

Yes. Browsers like Brave use strict privacy shields that can inadvertently block the tracking scripts and background processes Microsoft To Do uses to synchronize data. Disabling shields for the site or switching to Chrome or Edge often resolves this.

Will clearing my browser cache delete my existing tasks?

No. Microsoft To Do tasks are safely stored on cloud servers. Clearing your browser cache only removes temporary local files and forces the web application to download a fresh copy of your tasks from the server.

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