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Fix Windows Update Proxy Error on Windows 10 - Docker Build Failed: Manifest Not Found Troubleshooting-Fix Windows Defender Login Loop with Registry Edit

2026-06-13 14:15:41
Fix Windows Update Proxy Error on Windows 10 - Docker Build Failed: Manifest Not Found Troubleshooting-Fix Windows Defender Login Loop with Registry Edit

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.