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Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Error - How to Resolve Windows Update Stuck at 100%-Windows 11 Update Stuck on Downloading Fix

Updated 2026-06-13 12:15:53cloud-software
Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Error - How to Resolve Windows Update Stuck at 100%-Windows 11 Update Stuck on Downloading Fix
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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