This can fix iCloud Drive does not sync on Windows 10. You can either make a quick search in the Start menu to open iCloud Drive or find it in the system tray icons. Launch the iCloud Drive app on your system. Restart the Service-įirst, we would try to reactivate the iCloud Drive service on your Windows PC. How to Fix the “iCloud Drive not Syncing” Issue on Windows 10? 1. Insufficient storage space on the iCloud drive.Outdated Windows OS or the iCloud drive app.Here are a few reasons why the iCloud Drive service may get inaccessible on Windows 10 PC: