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Fix Windows Defender Version Mismatch After Update - How to Fix Windows Defender Connection Refused Error-Fix Port Already Allocated on Windows: Step-by-Step

2026-06-14 03:17:45
Fix Windows Defender Version Mismatch After Update - How to Fix Windows Defender Connection Refused Error-Fix Port Already Allocated on Windows: Step-by-Step

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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