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How to Fix Microsoft Forms File Upload Disabled for Anyone Who Can Respond

Bushra Parveen Oct 12, 2026 869 views

Question details

The user needs a way to allow external or anonymous respondents to upload files to a form, but the default file upload option is unavailable.

How to Fix Microsoft Forms File Upload Disabled for Anyone Who Can Respond

Product: Microsoft Forms
Device & OS: not provided
Scenario: Creating a Microsoft Form and attempting to add a file upload question while allowing anyone to respond.
Observed behavior: The file-upload question type is disabled or grayed out when the form's permission is set to 'Anyone can respond'.

Before you start

Verify your organization's external sharing and security policies before creating public file upload links to ensure you comply with data security guidelines.

Solution 1Recommended

Use a Shared OneDrive Folder for External File Uploads

Since Microsoft Forms does not support anonymous file uploads directly, providing a secure OneDrive folder link is the best workaround for external users.

Microsoft restricts file uploads to internal organization members for security and storage management reasons. To bypass this for external users, you can use OneDrive for Business to create a dedicated upload space.

Create a new folder in OneDrive

Log in to your OneDrive for Business account, click on 'New', and select 'Folder'. Name it appropriately for your form responses.

Configure folder permissions

Select the newly created folder, click 'Share', and change the link settings to 'Anyone with the link can edit'. You can also set an expiration date or password for added security.

Copy the sharing link

Click 'Apply' to save the permission settings, then click 'Copy link' to generate a sharable URL for the folder.

Add the link to your Microsoft Form

Open your Microsoft Form and add a 'Text' question or use the form description. Paste the OneDrive link and instruct your anonymous respondents to upload their files there.

Use a Shared OneDrive Folder for External File Uploads

Security Note: When you allow 'Anyone with the link can edit', users will be able to see and modify files uploaded by others in that specific folder. Use this method carefully.

Solution 2

Restrict Form Access to Enable Direct File Uploads

If collecting files directly within the form is strictly required, you must restrict the form access to users within your organization.

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Frequently Asked Questions

Can external users upload files to Microsoft Forms without an account?

No, Microsoft Forms does not support anonymous or external file uploads directly within the form. You must use workarounds like providing a shared OneDrive folder link with 'Anyone with the link' edit permissions.

Where are Microsoft Forms file uploads saved?

For personal forms, uploaded files are saved in the form creator's OneDrive for Business under an 'Apps > Microsoft Forms' folder. For group forms, files are saved in the corresponding SharePoint document library.

What is the maximum file size limit for Microsoft Forms?

When the file upload feature is enabled for internal users, you can configure the maximum file size per file to be 10MB, 100MB, or 1GB in the question settings.

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