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Fix Task Scheduler Proxy Sync Not Working - Resolve 'File in Use' Error from Windows Defender-Windows 10 Update Connection Error Fix

2026-06-13 19:05:20
Fix Task Scheduler Proxy Sync Not Working - Resolve 'File in Use' Error from Windows Defender-Windows 10 Update Connection Error Fix

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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