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Fix 'ffmpeg: command not found' on Linux - Windows Defender Update Error 0x80070005: Step-by-Step Fix-Fix Windows Security Sync After Migration

Updated 2026-06-13 14:36:38browser-issues
Fix 'ffmpeg: command not found' on Linux - Windows Defender Update Error 0x80070005: Step-by-Step Fix-Fix Windows Security Sync After Migration
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.