Fix Windows Security 404 Not Found Permissions Issue - Resolve PowerShell 504 Timeout: Step-by-Step Guide-Edge Profile Sync Stuck at Startup Troubleshooting

Updated 2026-06-14 06:45:44cloud-software
Fix Windows Security 404 Not Found Permissions Issue - Resolve PowerShell 504 Timeout: Step-by-Step Guide-Edge Profile Sync Stuck at Startup 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.