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Fix slui.exe High CPU Usage During Windows Activation - Fix Command Prompt Admin Access Denied Error-Fix PowerShell 504 Gateway Timeout When Calling REST API

2026-06-13 18:22:39developer-tools
Fix slui.exe High CPU Usage During Windows Activation - Fix Command Prompt Admin Access Denied Error-Fix PowerShell 504 Gateway Timeout When Calling REST API

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.