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Fix Windows Update Error 0x80072efd: Connection Refused - Windows Defender Can't Reach Microsoft Server Troubleshooting-How to Resolve NO_PUBKEY Error in Ubuntu

Updated 2026-06-13 13:24:15windows-fixes
Fix Windows Update Error 0x80072efd: Connection Refused - Windows Defender Can't Reach Microsoft Server Troubleshooting-How to Resolve NO_PUBKEY Error in Ubuntu
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