Outlook Proxy Settings Not Saving: Fixes That Work - Fix OneDrive High Memory Usage & Permission Denied Errors-How to Fix Defender Network Issue Post-Update

Updated 2026-06-13 23:30:26security-tools
Outlook Proxy Settings Not Saving: Fixes That Work - Fix OneDrive High Memory Usage & Permission Denied Errors-How to Fix Defender Network Issue Post-Update
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.