Forum Discussion

Brass Contributor

Jan 12, 2022

Solved

ReFS volume appears RAW (version doesn't match expected value) after Windows Update

After Windows Update last night, Windows Server 2019 wouldn't mount a storage space volume as ReFS (it appears as RAW). The error in the ReFS event log is "ReFS failed to mount the volume. Version 1....

refs

storage

Windows Server

MikeLabatt
Jan 13, 2022
I solved this by uninstalling KB5009557. The ReFS volume came back working as it should, instead of appearing as RAW.

Update: since even the February 2022 Windows Update bricks ReFS in the same way, and hints from Microsoft are that ReFS 1.x is no longer supported, we copied everything to new disks, upgrading ReFS from 1.2 to 3.4 in the process. Such a (manual) ReFS upgrade should be the solution that everyone needs, allowing to re-enable Windows Update.

MikeLabatt

Brass Contributor

Jan 13, 2022

I solved this by uninstalling KB5009557. The ReFS volume came back working as it should, instead of appearing as RAW.

Update: since even the February 2022 Windows Update bricks ReFS in the same way, and hints from Microsoft are that ReFS 1.x is no longer supported, we copied everything to new disks, upgrading ReFS from 1.2 to 3.4 in the process. Such a (manual) ReFS upgrade should be the solution that everyone needs, allowing to re-enable Windows Update.

robertkennington

Copper Contributor

Jan 14, 2022

We ran into this on a Server 2012 server and had to uninstall both KB5009595 and KB5009624 before our drives came back.

iweidner7272
Copper Contributor
Jan 15, 2022
robertkennington
Same problem here on Windows 2012R2. We have to uninstall both, KB5009595 and KB5009624. After uninstallation our ReFS File Sytem came back!
- JGarcia1
  Copper Contributor
  Feb 10, 2022
  We saw the same issue in our environment. Thank you removing those 2 updates resolved our issue.