How to Enable Windows Defender After It Failed to Start - How to Resolve Chrome Update Error 12 on Windows 10-Cloudflare SSL Flexible Mode Loop Solution

Updated 2026-06-14 03:20:03developer-tools
How to Enable Windows Defender After It Failed to Start - How to Resolve Chrome Update Error 12 on Windows 10-Cloudflare SSL Flexible Mode Loop Solution
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.