OneDrive Sync supports syncing up to 1 million items on Windows devices, helping teams manage large document libraries and shared content at scale without compromising access across devices. This preview requires the Insiders ring and that devices meet minimum hardware and configuration requirements. Devices that don't meet these requirements continue to sync at the existing 300,000-item supported limit with no disruption.
Dates
Preview Apr 2026 · GA Dec 2026
Apps
OneDrive
Type
End-user app
Platforms
Desktop
Release phases
Preview
Cloud instances
Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD