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How to Fix Cloudflare 521 Error with Firewall Settings - Windows Update 0x80070005: Cannot Install Updates Fix-Fix VSCode Breakpoints Not Hit in launch.json

2026-07-28 06:05:08
How to Fix Cloudflare 521 Error with Firewall Settings - Windows Update 0x80070005: Cannot Install Updates Fix-Fix VSCode Breakpoints Not Hit in launch.json

Result check

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

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