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Fix Windows Defender Crash Loop in Windows 10 - Windows Update Version Mismatch Troubleshooting Guide-Resolve NO_PUBKEY and Invalid Signature Errors in Ubuntu

Updated 2026-06-13 19:09:46cloud-software
Fix Windows Defender Crash Loop in Windows 10 - Windows Update Version Mismatch Troubleshooting Guide-Resolve NO_PUBKEY and Invalid Signature Errors in Ubuntu
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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