Forum Discussion
panagos13
Dec 06, 2025Copper Contributor
Windows 11 23H2 → 25H2 in-place upgrade fails in SAFE_OS / MIGRATE_DATA
I'm trying to in-place upgrade a Windows 11 23H2 system to 25H2 and consistently get a rollback in the SAFE_OS / MIGRATE_DATA phase with 0x8007042B – 0x2000D. After a lot of analysis (Panther logs, S...
AndreasWiesinger
Jan 22, 2026Copper Contributor
We are also facing a lot of issue with the adammigrate.dll - upgrading from 23H2 to 24H2 with Enterprise ISO - will try another ISO Version and keep you updated
Zaphiro
Jan 23, 2026Copper Contributor
Yes we are still having major issues during the migration of components and experiencing failures during the SafeOS phase. I've opened an Enterprise ticket with Microsoft and have followed all their directions, with no solution identified. Seems they're also unsure as to why this is happening...