| Error | Likely Cause | Workaround | | :--- | :--- | :--- | | "OneDrive requires macOS 10.14" | Attempted to run newer installer | Use legacy installer version 21.220 or older | | Sync stuck at "Processing changes" | Corrupted local cache | Quit OneDrive, delete contents of ~/Library/Application Support/OneDrive , restart | | Login loop (infinite browser redirect) | Outdated WebKit framework | Use "Sign in with device code" instead of browser auth |
If the legacy client fails to sync, these methods are more reliable for older Macs: onedrive for macos 10.13.6
Use or CloudMounter . These apps connect to OneDrive’s WebDAV or Graph API without requiring the official Microsoft sync engine. As of May 2026, both still support macOS 10.13. | Error | Likely Cause | Workaround |
As of this writing, macOS 10.13.6 is significantly older than the current macOS versions. Apple no longer provides security updates for it, and Microsoft has also shifted its support lifecycle. The following write-up reflects the final compatible state of OneDrive for this operating system. As of this writing, macOS 10