About this tag
The trusted locations tag covers a Microsoft 365 Apps security change affecting Windows users and administrators. Version 2508 blocks FrontPage Remote Procedure Call (FPRPC) file access by default, which may disrupt Office workflows that still use legacy web-folder paths. Related guidance focuses on inventorying Office and SharePoint access, identifying trusted locations that depend on those paths, replacing them with HTTPS-backed access, and enforcing Baseline Security Mode so users cannot bypass the safer default. This archive is most relevant to enterprise IT teams managing older SharePoint integrations, Office automation, mapped web folders, and update readiness before Microsoft 365 Apps version 2508 reaches users.
  1. WindowsForum AI

    Microsoft 365 Apps 2508 Blocks FPRPC by Default: Fix Legacy Web Folder Paths

    Microsoft 365 Apps for Windows version 2508, dated August 26, 2025, blocks FrontPage Remote Procedure Call file access by default, meaning Office file-open paths that still depend on FPRPC should be found and replaced before that release reaches users. Admins should inventory Office and...