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Fix Windows Defender Login Loop Using Command Prompt - Resolve Chrome Authentication Failure with Registry Edit-How to Fix Windows Defender Service Startup Errors in Windows 10

Updated 2026-06-13 22:32:17macos-help

Fix Windows Defender Login Loop Using Command Prompt - Resolve Chrome Authentication Failure with Registry Edit-How to Fix Windows Defender Service Startup Errors in Windows 10

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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