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Fix PowerShell 502 Bad Gateway Caused by TLS Version Mismatch - How to Fix Windows Defender Errors-Fix Windows Security App Blank White Screen

2026-06-13 22:01:46
Fix PowerShell 502 Bad Gateway Caused by TLS Version Mismatch - How to Fix Windows Defender Errors-Fix Windows Security App Blank White Screen

Result check

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