Operating an older Mac running macOS 10.13.6 (High Sierra) comes with unique software challenges. As Apple updates its ecosystem, major developers like Microsoft slowly phase out support for older operating systems. This leaves High Sierra users in a difficult position when trying to synchronize files via OneDrive.
Legacy clients occasionally get stuck checking for changes indefinitely. Click the OneDrive icon in the menu bar. Close the application completely. Open the app (found in Applications > Utilities). onedrive for macos 10.13.6
September 10, 2021 Last Compatible macOS Versions: 10.12 Sierra and 10.13 High Sierra Current Minimum Requirement: macOS 13.0 or newer Operating an older Mac running macOS 10
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. Legacy clients occasionally get stuck checking for changes