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Solving Cloudflare Tunnel Permission Denied Issues - Windows Defender CPU Spike Troubleshooting-Fix Windows Defender Service Not Starting in Windows 11

Updated 2026-06-13 13:24:36backup-recovery
Solving Cloudflare Tunnel Permission Denied Issues - Windows Defender CPU Spike Troubleshooting-Fix Windows Defender Service Not Starting in Windows 11
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.

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