Data Protection Issues

What Does Deny Access Mean in OneDrive App Storage?

Partner Editor Oct 7, 2026 870 views

Question details

The user wants to understand the implications of selecting the 'Deny access' option for connected applications in OneDrive storage settings.

What Does 'Deny Access' Mean in OneDrive App Storage?

Product: Microsoft OneDrive
Device & OS: not provided
Scenario: Managing third-party or connected application permissions within the cloud storage settings.
Observed behavior: The settings menu displays a 'Deny access' option, and the user needs to know how this will affect the application's ability to interact with stored files.

Before you start

Before making changes to app permissions in OneDrive, ensure you identify the exact application you are modifying, as revoking access will instantly halt its ability to save or sync your work to the cloud.

Solution 1Recommended

Understand and Manage Application Access in OneDrive Settings

Use this guide to understand how revoking access impacts your connected apps and how to safely manage your data privacy.

Selecting 'Deny access' instantly revokes a specific application's permission to read, write, or sync files within your OneDrive storage.

If you apply this option to a connected app, it will no longer be able to upload new documents, download existing files, or synchronize data across your devices using your Microsoft account.

Review the Connected App's Purpose

Before clicking 'Deny access', verify what the application does. If it is a necessary document editor or backup tool, revoking access will prevent it from functioning correctly.

Navigate to Account App Permissions

Log into your Microsoft account via a web browser. Go to the 'Privacy' section, scroll to the 'Apps and services' area, and select 'Apps and services that can access your data' to view all connected applications.

Revoke Access Safely

Click on the specific application from the list, select 'Edit' or 'Manage', and click 'Remove these permissions' or 'Deny access' only if you no longer use or trust the app.

Understand and Manage Application Access in OneDrive Settings

Restoring Revoked Access: If you accidentally deny access to a required application, you can usually restore it by reopening that app and signing into your Microsoft account again to re-authorize the storage permissions.

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Frequently Asked Questions

Will denying access delete my files stored in OneDrive?

No, clicking 'Deny access' only prevents the specific application from viewing or modifying your files. All of your previously saved files will remain safely stored in your OneDrive account.

How do I re-grant access to an app after denying it?

To restore access, you typically need to launch the third-party application again and initiate a new connection to OneDrive. You will be prompted to sign in and authorize the permissions.

Why do some apps request access to my entire OneDrive?

Many comprehensive file management, backup, or editing tools require broad access to scan, sync, or save files anywhere across your cloud storage. You should only grant full access to applications from verified and trusted developers.

Can I see a list of all third-party apps with access to my OneDrive?

Yes. You can view and manage all connected applications by logging into your Microsoft account on the web, navigating to the Privacy dashboard, and selecting 'Apps and services that can access your data'.

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