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Fix Windows Defender Service Not Starting (Connection Refused) - How to Resolve 0x80070643 Installation Failed-PowerShell Execution Policy Restricted Fix Windows 11

Updated 2026-06-13 14:46:04developer-tools
Fix Windows Defender Service Not Starting (Connection Refused) - How to Resolve 0x80070643 Installation Failed-PowerShell Execution Policy Restricted Fix Windows 11
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  • Match the tool to the workflow that fails most often, not only the feature list.
  • Keep export format, permissions, and automation limits in the final decision.

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