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Fix 'nginx: configuration test failed unexpected end of file' - Windows Security App Not Opening on Windows 10: Fixes That Work-Troubleshooting Cloudflare Error 521

Updated 2026-07-28 07:31:31windows-fixes
Fix 'nginx: configuration test failed unexpected end of file' - Windows Security App Not Opening on Windows 10: Fixes That Work-Troubleshooting Cloudflare Error 521
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