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Fix 'Windows Security Module Not Found' Antivirus Error - How to Enable Windows Defender in Windows 10-Reduce Windows Defender CPU Usage on Windows 11

2026-06-13 15:23:35
Fix 'Windows Security Module Not Found' Antivirus Error - How to Enable Windows Defender in Windows 10-Reduce Windows Defender CPU Usage on Windows 11

Result check

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

Next references

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