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Fix Windows Update Error: Port Already Allocated - Fix Permission Denied When Clearing Windows Security Cache-Fix Windows Defender Error 0x800704ec

2026-06-13 15:05:10
Fix Windows Update Error: Port Already Allocated - Fix Permission Denied When Clearing Windows Security Cache-Fix Windows Defender Error 0x800704ec

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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