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Fix Windows Security Blank Screen After Update - FFmpeg Audio Desync Fix Guide-Fix Windows Store Error 0x80073cf9 Sync Issue

2026-06-13 18:31:38
Fix Windows Security Blank Screen After Update - FFmpeg Audio Desync Fix Guide-Fix Windows Store Error 0x80073cf9 Sync Issue

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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