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Fix Windows Defender Connection Timeout Error 0x80070422 - How to Fix Microsoft Store White Screen After Windows Update-Fix 'Activation Service Unavailable' in Windows 10/11

2026-06-13 15:16:22
Fix Windows Defender Connection Timeout Error 0x80070422 - How to Fix Microsoft Store White Screen After Windows Update-Fix 'Activation Service Unavailable' in Windows 10/11

Result check

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