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Fix Windows Security Invalid Configuration Sync Error - How to Restore Windows Defender After Antivirus Removal-Microsoft Store Not Opening in Windows 11: Step-by-Step Fix

2026-06-13 15:36:12
Fix Windows Security Invalid Configuration Sync Error - How to Restore Windows Defender After Antivirus Removal-Microsoft Store Not Opening in Windows 11: Step-by-Step Fix

Result check

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