Fix Microsoft Store Installation Failed Error Code - How to Resolve 0x80070422 in Windows Defender-Clear System Caches with PowerShell: Step-by-Step

Updated 2026-06-13 20:06:57macos-help
Fix Microsoft Store Installation Failed Error Code - How to Resolve 0x80070422 in Windows Defender-Clear System Caches with PowerShell: Step-by-Step
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.