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Fix Windows Update Error 0x80070643 in Windows 11 - Jupyter Kernel Connection Error: Causes and Fixes-VPN Causes Windows Update 'Connection Refused' Error

2026-06-13 12:15:15
Fix Windows Update Error 0x80070643 in Windows 11 - Jupyter Kernel Connection Error: Causes and Fixes-VPN Causes Windows Update 'Connection Refused' Error

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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