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Fix Windows 11 Update Stuck at 0% – SoftwareDistribution Folder - Troubleshooting Cloudflare 521 Error: Port 443 Blocked-Resolve Nginx 502 with Docker and PHP-FPM

2026-07-28 08:28:30
Fix Windows 11 Update Stuck at 0% – SoftwareDistribution Folder - Troubleshooting Cloudflare 521 Error: Port 443 Blocked-Resolve Nginx 502 with Docker and PHP-FPM

Result check

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

Next references

Fix Windows 11 Installation Assistant Frozen During UpdateHow to Fix Chrome Profile Sync ErrorFix VS Code Git Authentication Failed: Step-by-Step GuideFix VSCode Source Control Not Detecting ChangesFix Nginx Upstream Connection Refused Socket ErrorChecklist to Fix npm Permission Denied Errors