Microsoft has begun automatically pushing the Windows 11 version 25H2 update to consumer devices still running version 24H2, marking a shift from optional to mandatory installation for many users.
The update, which became available as an enablement package in late September 2025, is now being rolled out through Windows Update as a forced upgrade for Home and Pro editions not managed by enterprise IT departments. Devices under organizational control will not receive the automatic update.
According to Microsoft’s support documentation, Windows 11 versions 24H2 and 25H2 share the same core operating system and system files. The new features in 25H2 are included in the latest monthly quality update for 24H2 but remain inactive until activated by the enablement package—a lightweight “master switch” that triggers the update with a single restart.
To qualify for the enablement package, devices must be running Windows 11 version 24H2 and have installed the August 29, 2025—KB5064081 update (OS Build 26100.5074) or a later cumulative update. A restart is required after installation.
The forced rollout aligns with the approaching end of support for Windows 11 version 24H2, scheduled for October 13, 2026. After that date, devices still on 24H2 will no longer receive security updates unless upgraded.
Microsoft advises against using the Installation Assistant or ISO files for the upgrade, as those methods trigger a full reinstallation. Instead, the enablement package offers a streamlined path that minimizes downtime.
Even as the version number changes from 24H2 to 25H2, the underlying system remains largely identical. The primary distinction lies in the support lifecycle, not functionality.
Users can still manually initiate the update via Windows Update if desired, though the automatic rollout is now active for eligible consumer systems.
