Microsoft will cease support for the OneDrive sync app on Windows 10 version 21H2 and earlier on August 15, 2026. Users of these older versions will no longer receive updates, including new features, bug fixes, or security enhancements. Windows 10 version 22H2 will continue to receive updates until October 10, 2028. Windows 10 accounts for approximately 28% of all Windows installations, while Windows 11 accounts for around 70%. Users can still access OneDrive through a web browser if the app becomes incompatible.