zhizhu
Home / developer-tools / Fix Windows Defender 'Cannot Connect, Permission Denied' Error - How to Fix Microsoft Store Not Working After Update-Resolve NO_PUBKEY error in Ubuntu

Fix Windows Defender 'Cannot Connect, Permission Denied' Error - How to Fix Microsoft Store Not Working After Update-Resolve NO_PUBKEY error in Ubuntu

2026-06-13 14:27:37
Fix Windows Defender 'Cannot Connect, Permission Denied' Error - How to Fix Microsoft Store Not Working After Update-Resolve NO_PUBKEY error in Ubuntu

Result check

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