Fix OneDrive Sync Network Error After Windows Update - How to Fix slui.exe Not Opening for Windows Activation-Troubleshoot Windows Defender Sync High Memory

Updated 2026-06-14 10:01:46backup-recovery
Fix OneDrive Sync Network Error After Windows Update - How to Fix slui.exe Not Opening for Windows Activation-Troubleshoot Windows Defender Sync High Memory
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.