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Fix Firefox Secure Connection Failed Error (Mozilla) - Fix Windows Update Error 0x80070005: Access Denied-How to Enable Windows Defender Real-Time Protection in Windows 10

2026-07-28 09:16:09
Fix Firefox Secure Connection Failed Error (Mozilla) - Fix Windows Update Error 0x80070005: Access Denied-How to Enable Windows Defender Real-Time Protection in Windows 10

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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