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Firefox Not Responding While Other Browsers Work: Fix - Error 0x80070020: File Locked by Windows Security Fix-Clear Microsoft Store Cache on Windows 10/11

2026-06-13 15:13:25
Firefox Not Responding While Other Browsers Work: Fix - Error 0x80070020: File Locked by Windows Security Fix-Clear Microsoft Store Cache on Windows 10/11

Result check

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