If the sync app won't install, you can still access your files via any modern web browser. OneDrive Web Portal
Installing and Using OneDrive on macOS 10.13.6 onedrive for macos 10.13.6
But as the digital seasons changed, Microsoft announced a new rule: to keep their systems fast and secure, they would only support the three most recent versions of macOS. On , the official partnership between High Sierra and new versions of OneDrive came to an end. Here is what the journey looks like for High Sierra today: The Blocked Path If the sync app won't install, you can
Microsoft follows a policy of supporting only the of macOS. As of 2025/2026, macOS High Sierra is several generations behind the supported threshold. New Installations : Blocked on macOS 10.13.6. Here is what the journey looks like for
Organizations must upgrade macOS or accept significant operational risk.
using the last compatible build (23.169.0823). For basic file sync in a home environment, it remains usable in mid‑2026. However, you are operating on borrowed time.