Microsoft has confirmed that from August 2026, its OneDrive cloud storage service will cease synchronising files on Windows 10 versions 21H2 and older. The move affects users still running these earlier builds, forcing them to upgrade to Windows 10 22H2 or switch to Windows 11 to maintain seamless cloud file access.
The decision aligns with Microsoft’s broader strategy to phase out older Windows iterations and push adoption of its latest operating system. Windows 10 22H2, the final feature update for the decade-old OS, will receive security patches until October 2028, giving enterprises and consumers a defined window to plan their migration. However, those on earlier releases now face an immediate deadline.
For UK businesses, the change poses operational risks. Many organisations, particularly in sectors like manufacturing, healthcare, and logistics, rely on legacy Windows 10 builds for compatibility with specialised software. The loss of OneDrive sync could disrupt collaborative workflows, remote file access, and automated backups. IT departments must audit their device fleets urgently and schedule upgrades to avoid downtime.
From a regulatory perspective, the UK Information Commissioner’s Office (ICO) expects organisations to maintain data security and availability. Disrupted sync could inadvertently lead to data loss or non-compliance with retention policies. Meanwhile, the EU AI Act does not directly apply here, but the broader trend of platform deprecation underscores the need for businesses to maintain up-to-date software to avoid security vulnerabilities and operational gaps.
Consumer users on older Windows 10 versions will also feel the pinch. OneDrive is deeply integrated into Microsoft 365 subscriptions, and losing sync means manual file transfers or reliance on alternative cloud services. While Windows 10 22H2 is a free update, some older hardware may not support it, effectively forcing a decision between upgrading hardware or moving to Windows 11.
Industry experts warn that this is a reminder of the creeping obsolescence of Windows 10. “Microsoft is tightening the screws,” said a technology analyst at a London-based consultancy. “For the UK economy, where small and medium enterprises often lag on updates, this could introduce friction. The risk is that some firms delay until the last minute, causing productivity losses. The opportunity is a cleaner, more secure software estate for those who act now.”