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How to Install Windows Defender on Ubuntu: Workarounds - Fix Windows Update Authentication Failed Due to Group Policy-Fix Windows Security Token Expired Due to Group Policy

2026-06-13 16:51:47
How to Install Windows Defender on Ubuntu: Workarounds - Fix Windows Update Authentication Failed Due to Group Policy-Fix Windows Security Token Expired Due to Group Policy

Result check

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