
Fix OneDrive Sync ‘Service Unavailable’ and ‘Permission Denied’ Errors
When OneDrive reports “Service Unavailable” or “Permission Denied” during sync, the problem is us...
Software troubleshooting desk

When OneDrive reports “Service Unavailable” or “Permission Denied” during sync, the problem is us...

If you recently switched networks—say, from a corporate VPN to a home Wi-Fi—and Windows Update no...

OneDrive for Mac sometimes shows 'Processing Changes' for a long time, preventing file sync. This...

You sign in to Windows, but instead of the desktop, you see a command prompt window that appears,...

You open Outlook, and it hangs on the loading screen—sometimes showing “Loading profile” or just ...

After a system update, you might find that a custom or third-party service fails to start. This i...