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Fix Windows Defender Real-Time Protection Stuck on Turning Off - How to Fix Git 'index.lock' File Exists Error-Troubleshoot Cloudflare 521 for Wildcard Subdomains

2026-07-28 13:45:57
Fix Windows Defender Real-Time Protection Stuck on Turning Off - How to Fix Git 'index.lock' File Exists Error-Troubleshoot Cloudflare 521 for Wildcard Subdomains

Result check

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