How to Fix Windows Update Access Denied Error - How to Fix Outlook Crashing at Startup Using Safe Mode-Resolve Windows Defender Crash Code 0x80073b01

Updated 2026-06-18 15:00:55developer-tools
How to Fix Windows Update Access Denied Error - How to Fix Outlook Crashing at Startup Using Safe Mode-Resolve Windows Defender Crash Code 0x80073b01
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.