Chrome Authentication Failed Sync: Causes and Fixes - Boot Camp Windows Activation Error Troubleshooting-Windows Defender 0x800704ec Troubleshooting

Updated 2026-06-14 12:01:51cloud-software
Chrome Authentication Failed Sync: Causes and Fixes - Boot Camp Windows Activation Error Troubleshooting-Windows Defender 0x800704ec Troubleshooting
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.