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Fix Windows Search Authentication Failed Configuration Error - Windows Defender Offline Scan Not Working After Update: Fixes-Fix PowerShell 404 Not Found with Invoke-RestMethod

Updated 2026-06-14 21:58:34cloud-software
Fix Windows Search Authentication Failed Configuration Error - Windows Defender Offline Scan Not Working After Update: Fixes-Fix PowerShell 404 Not Found with Invoke-RestMethod
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.