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Fix 'Access Denied' Errors After Windows Update - How to Fix PowerShell Startup Failure-Microsoft Teams 502 Bad Gateway Fix

Updated 2026-06-14 11:58:35browser-issues
Fix 'Access Denied' Errors After Windows Update - How to Fix PowerShell Startup Failure-Microsoft Teams 502 Bad Gateway 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.