Fix OneDrive Proxy Error After Windows Update - Windows Defender Failed to Start: Error 0x800106ba-Resolve Error 0x80240016 in Windows Defender

Updated 2026-06-14 01:40:38windows-fixes
Fix OneDrive Proxy Error After Windows Update - Windows Defender Failed to Start: Error 0x800106ba-Resolve Error 0x80240016 in Windows Defender
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.