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Windows Defender Setup Checklist for New PC - OneDrive Sync Broken After Windows Update: Fixes-Fix Chrome ERR_TUNNEL_CONNECTION_FAILED on Windows 10

2026-06-16 00:29:57
Windows Defender Setup Checklist for New PC - OneDrive Sync Broken After Windows Update: Fixes-Fix Chrome ERR_TUNNEL_CONNECTION_FAILED on Windows 10

Result check

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

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