Onedrive For Macos 10.13.6 Fixed -

Requires macOS 11.0 (Big Sur) or later.

Even if it installs, it may prompt a "Required Update" and block usage. 3. Third-Party Sync Clients onedrive for macos 10.13.6

Since you are likely relying on the web version, ensure you are using the latest possible version of or Firefox for High Sierra. Safari 13 (the max for 10.13.6) may struggle to render newer web features. Consider an OS Patch (Advanced) Requires macOS 11

If your hardware is capable but Apple blocked the update, tools like the can allow you to install a newer macOS (like Monterey) on unsupported Macs. This would restore official OneDrive support. onedrive for macos 10.13.6