Fix OneDrive Sync ‘Service Unavailable’ and ‘Permission Denied’ Errors - How to Restore Missing VMware Virtual Ethernet Adapter-Microsoft Store Certificate Expired – Troubleshooting Guide

Updated 2026-06-14 06:29:27developer-tools
Fix OneDrive Sync ‘Service Unavailable’ and ‘Permission Denied’ Errors - How to Restore Missing VMware Virtual Ethernet Adapter-Microsoft Store Certificate Expired – 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.