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How to Fix Cloudflare Error 526: Invalid Origin Certificate - Troubleshooting 0x80070002 Windows Update Error-How to Flush DNS Cache and Fix Name Resolution Error

Updated 2026-07-28 15:31:37backup-recovery
How to Fix Cloudflare Error 526: Invalid Origin Certificate - Troubleshooting 0x80070002 Windows Update Error-How to Flush DNS Cache and Fix Name Resolution Error
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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