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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....
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.
I'm running Windows 10 on a machine that I set up with Storage Spaces/ReFS nine years ago. I can relate to the despair - when I booted my PC yesterday and saw my archive volume appearing as a RAW volume. I tried various combinations of Windows Update removals/reinstalls/hotfixes described above, cold boots as recommended on another thread, even ReFSUtil.exe salvage - all with no success.
I'm so thankful I remembered that, years ago, I had used IsoBuster (https://www.isobuster.com/) to get files off of a DVD. Turns out, it supports ReFS!! I have access to all my files again. Huge thanks to the developer of IsoBuster for all his efforts in building and maintaining that incredible tool over the years. ♥
I'm so thankful I remembered that, years ago, I had used IsoBuster (https://www.isobuster.com/) to get files off of a DVD. Turns out, it supports ReFS!! I have access to all my files again. Huge thanks to the developer of IsoBuster for all his efforts in building and maintaining that incredible tool over the years. ♥
