Fix Windows Defender Real-Time Protection Not Running - How to Fix Windows Update Error 0x80070002-Windows Explorer Keeps Restarting After Login – Troubleshooting Guide

Updated 2026-07-28 13:50:33security-tools
Fix Windows Defender Real-Time Protection Not Running - How to Fix Windows Update Error 0x80070002-Windows Explorer Keeps Restarting After Login – Troubleshooting Guide
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.