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Fix Windows Update 504 Gateway Timeout on Windows 10 - Real-Time Protection Greyed Out – Quick Fixes-How to Fix Windows Update Service Not Starting

2026-06-13 14:14:51
Fix Windows Update 504 Gateway Timeout on Windows 10 - Real-Time Protection Greyed Out – Quick Fixes-How to Fix Windows Update Service Not Starting

Result check

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

Next references

How to Fix Windows Update Stuck on Blank ScreenFix Windows Defender Access Denied Permission ErrorFix Git Clone Permission Denied (Publickey) but SSH WorksHow to Create a Docker Compose Network: Step-by-Step SetupFix 504 Gateway Timeout with Windows Security FirewallWindows Security Backup Tool: Setup and Troubleshooting Guide