How to Fix Windows Update Error 502 Bad Gateway - Windows 10 Activation Memory Leak Fix-Nginx config test fails with unknown directive server_name

Updated 2026-06-13 14:30:30windows-fixes
How to Fix Windows Update Error 502 Bad Gateway - Windows 10 Activation Memory Leak Fix-Nginx config test fails with unknown directive server_name
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.