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Fix Outlook Startup Error: Cannot Open the Outlook Window - How to Stop RDP Login Loop When NLA is Off-Windows Activation Failed Permission Denied Fix

Updated 2026-06-14 01:43:07windows-fixes
Fix Outlook Startup Error: Cannot Open the Outlook Window - How to Stop RDP Login Loop When NLA is Off-Windows Activation Failed Permission Denied Fix
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.