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Fix Windows Defender Proxy Error 0x80070422 - Windows Search Access Denied: Command Prompt Fix-How to Fix 502 Bad Gateway Certificate Errors in PowerShell

2026-06-14 03:08:13
Fix Windows Defender Proxy Error 0x80070422 - Windows Search Access Denied: Command Prompt Fix-How to Fix 502 Bad Gateway Certificate Errors in PowerShell

Result check

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