Edge Browser Crashing on Startup in Windows 10 – Fixes - Microsoft Store High Memory & Error 0x80073cf0 Fix-How to Stop Windows Defender Login Loop

Updated 2026-06-13 15:52:57developer-tools
Edge Browser Crashing on Startup in Windows 10 – Fixes - Microsoft Store High Memory & Error 0x80073cf0 Fix-How to Stop Windows Defender Login Loop
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.