Forum Discussion
Karl-WE
Jun 06, 2026MVP
in-place upgrade fails from b29574 to latest vnext b29595
Hi all,
is anyone facing the same issue IPU fails on a fresh b29574 upgrading to latest using WU?
provided more information in feedback hub. Thanks for sharing your experience.
as a next attem...
Nandlapro4232
Jun 06, 2026Copper Contributor
I’m seeing the same issue here. Looks like the rollback is happening during driver cleanup (0xC1900101-0x20017). Since you’re on ReFS + Hyper-V, that could definitely be related. Trying the ISO upgrade sounds like a good next step — please update if it works.
Karl-WE
Jun 12, 2026MVP
Hi Nandlapro4232 for me neither way worked, tested ISO and Windows Update.
If you are using ReFS on drive C please upvote the feedback links.
Can also add log as zip from c:\Windows\panther or $Windows.BT