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Fix 'Windows Update File Locked by Another Program' Error - Fix DNS Server Not Responding for Windows Update-Fix Windows Defender Real-Time Protection Off via Registry

2026-06-13 12:59:42
Fix 'Windows Update File Locked by Another Program' Error - Fix DNS Server Not Responding for Windows Update-Fix Windows Defender Real-Time Protection Off via Registry

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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