How to Reset Microsoft Store Cache Path - How to Resolve 0x80070002 and High CPU Usage-Windows Defender Failed to Start: Error 0x800106ba

Updated 2026-06-13 18:28:30developer-tools
How to Reset Microsoft Store Cache Path - How to Resolve 0x80070002 and High CPU Usage-Windows Defender Failed to Start: Error 0x800106ba
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.