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Fix OneDrive Connection Refused Error 0x8004de40 - How to Fix Microsoft Teams Firewall Blocking Issues-Configure Windows Defender Scheduled Scan for Multiple Drives

2026-06-14 04:52:41
Fix OneDrive Connection Refused Error 0x8004de40 - How to Fix Microsoft Teams Firewall Blocking Issues-Configure Windows Defender Scheduled Scan for Multiple Drives

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

Next references

How to Fix OneDrive Sync Stuck IssuesFix Microsoft Teams Port Already Allocated with NetshFix Outlook SMTP 587 Port Already Allocated ErrorHow to Clear PowerShell Module Cache on Windows 10How to Fix Windows Security Not RespondingFix Microsoft Store Connection Timeout Error