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We’re sorry, the preview didn’t load. This document may be protected.

  • May 22, 2025
  • 3 replies
  • 138 views

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I receive the following error message when attempting to open a document shared with me. 

We’re sorry, the preview didn’t load. This document may be protected.

The sender indicates other clients can access and imply it's a me issue.  

I cleared cache, attempted to open in Edge, IE and Chrome.  All are up to date. 

Any suggestions?

3 replies

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Hi Jennifer, 

Welcome to the Box Community, I'm happy to help!

Can you try disabling add-ins or extension on your browser and see if that helps?

We've also seen this happen to other users using anti-virus/ firewall that could be blocking your access to the content. Can you make sure that your firewall is configured to allow Box access according to this article: https://support.box.com/hc/en-us/articles/360043696434-Configuring-A-Firewall-For-Box-Applications

Hope these tips help! If you have any questions, please let us know and we will help you!

Regards,


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This error happens when the uploaded file is password-protected.  


  • New Member
  • June 15, 2026

I have recently started getting this message too, & it is happening with the same file in both our business and with our client (a different business). Our workaround is saving a new separate file rather than on top of the old one, which is not ideal as we lose the inter-version notes & comments.