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Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Git index.lock File Exists Even After Deleting: Fixes-How to Fix Windows 11 Upgrade Stuck at 99%

Updated 2026-07-28 08:07:35office-tools

Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Git index.lock File Exists Even After Deleting: Fixes-How to Fix Windows 11 Upgrade Stuck at 99%

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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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