Windows Search Proxy Setup Guide: Practical Steps - How to Reset Outlook Configuration Safely-Fix Token Expired When Using Office 365 in Command Prompt
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.