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Fix Windows Update Error 0x800f0922 When Using Backup Software - Outlook 502 Bad Gateway: Troubleshooting Checklist-Fix Windows Defender Connection Refused After Update

Updated 2026-06-14 06:12:11developer-tools

Fix Windows Update Error 0x800f0922 When Using Backup Software - Outlook 502 Bad Gateway: Troubleshooting Checklist-Fix Windows Defender Connection Refused After Update

Prepare

Execute

Validate

Document

Operational follow-up

Record the exact option, command, or setting that changed the result.
Keep a rollback note if the workflow affects shared files or team settings.

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