Microsoft Ends OneDrive Sync App Security Updates on Older Windows 10 PCs

Microsoft will stop providing feature and security updates for the OneDrive sync app on Windows 10 version 21H2 and earlier effective August 15, 2026; devices on 22H2 will continue to receive support through October 10, 2028. Organizations are advised to inventory affected endpoints, prioritize upgrades to Windows 11 or at least Windows 10 22H2, direct users to OneDrive web as an interim access method, and update asset records—this is a support lifecycle notice that raises potential future attack-surface concerns but does not report any specific vulnerability or active exploitation.