How to Fix Windows Defender Authentication Failed Error
If you see "Authentication failed" when opening Windows Defender or trying to run a scan, it usua...
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You open Windows Security and see 'Error 502 – Bad Gateway.' This usually means Windows Defender ...
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If Outlook suddenly shows a "connection refused" error when trying to send or receive email, the ...
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You click 'Check for updates' in Windows Update, but instead of downloading, you get an error lik...
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