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Fix Microsoft Forms File Upload Disabled for Anyone Responses

Maira Mehtab Sep 22, 2026 869 views

Question details

The File Upload question type is disabled or unavailable when a Microsoft Form is configured to allow responses from anyone outside the organization.

Product: Microsoft Forms
Device & OS: not provided
Scenario: Creating a public form intended to collect documents or files from external or anonymous respondents.
Observed behavior: The File Upload question option is grayed out and cannot be added as long as the form's sharing settings allow external users to respond.

Before you start

Check your form's current sharing settings under 'Collect responses' to see whether it is set to accept internal or external submissions.

Solution 1Recommended

Restrict Form Responses to Internal Users

Because Microsoft strictly limits file uploads to internal users for security reasons, the only native way to use the file upload feature is to change the sharing permissions.

Microsoft Forms does not currently support file uploads from external or anonymous users. This is a built-in security measure designed to protect your organization's SharePoint and OneDrive environments from malicious files.

Open form sharing settings

Click the 'Collect responses' or 'Send' button located in the top right corner of your Microsoft Forms editing screen.

Change response permissions

Click the drop-down menu in the sharing pane and select 'Only people in my organization can respond'.

Add the file upload question

Return to your form, click 'Add new', click the arrow for more question types, and select 'File Upload'. The option will now be enabled.

Security and Compliance: This restriction is mandatory in Microsoft Forms and cannot be bypassed by organizational administrators.

Solution 2

Use OneDrive 'Request Files' as an External Workaround

If you absolutely must collect files from external respondents securely, you can use the OneDrive 'Request Files' feature and link it within your form.

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Frequently Asked Questions

Can an administrator enable external file uploads in Microsoft Forms?

No. The inability to upload files anonymously is a strict security and compliance measure set by Microsoft. Even global administrators cannot override this setting to allow external file uploads.

Where are the files uploaded via Microsoft Forms stored?

For personal forms, files are stored in the creator's OneDrive for Business under a dedicated 'Apps' folder. For group forms, the files are stored in the default document library of the associated SharePoint site.

What is the maximum file size for uploads in Microsoft Forms?

When the file upload feature is enabled (for internal users), you can configure the size limit per file up to a maximum of 1 GB. You can also allow up to 10 files to be uploaded per question.

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