How to Clear Outlook Offline Data File Cache - Resolve Outlook 'File in Use' Errors from Antivirus-Chrome Profile Failed to Start Windows 10: Fix Guide

Updated 2026-06-14 12:21:42cloud-software
How to Clear Outlook Offline Data File Cache - Resolve Outlook 'File in Use' Errors from Antivirus-Chrome Profile Failed to Start Windows 10: Fix Guide
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.