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Fix Chrome Certificate Error: Invalid Authority & Date/Time Issue - How to Enable Windows Defender When Third-Party AV Blocks It-How to Resolve Cloudflare 521 After Server Update

Updated 2026-07-28 16:13:11cloud-software

Fix Chrome Certificate Error: Invalid Authority & Date/Time Issue - How to Enable Windows Defender When Third-Party AV Blocks It-How to Resolve Cloudflare 521 After Server 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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