Fix Windows Defender Connection Refused or Permission Denied Errors
If you see "connection refused" or "permission denied" when trying to start or update Windows Def...
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Fix Windows Defender Update Error 0x80070490 on Windows 11
If you see error 0x80070490 when trying to update Windows Defender on Windows 11, it usually mean...
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Resolve Windows Security Threat History Connection Timeout
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Windows Search Not Working: Connection Refused Error