Requires macOS 11.0 (Big Sur) or later.
💡 You cannot run the modern OneDrive desktop app on macOS 10.13.6. Use the web portal for quick access or third-party software if background syncing is a "must-have." To help you find the best solution, let me know: onedrive for macos 10.13.6
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. Requires macOS 11
Microsoft aligns its OneDrive support with Apple’s "n-3" policy. This means they only support the three most recent versions of macOS. Because High Sierra is now several generations behind, the modern OneDrive app will not install or sign in on this version. ⚠️ The Compatibility Reality Ended in September 2021. This would restore official OneDrive support