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Fix Windows Activation: Cannot Connect to KMS Server - Stop Port Already in Use Error on Windows 10-Enable Windows Security Real-Time Protection Guide

2026-06-13 17:32:06
Fix Windows Activation: Cannot Connect to KMS Server - Stop Port Already in Use Error on Windows 10-Enable Windows Security Real-Time Protection Guide

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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