Note Simple Storage Spaces and Mirror Storage Spaces are not affected by this issue. Also, the troubleshooter appears only when you have an issue, and OS has attempted to recover. Make sure to check if it was run automatically.

Windows Troubleshooters for Parity Storage Spaces

Microsoft has already warned that reverting to the previous version or running the CHKDSK command and any attempt to fix the problem not recommended by them might result in data corruption.  You can follow the manual method or download the troubleshooters from the Windows Team and give it a try.  There is currently no full mitigation for all scenarios of this issue. This troubleshooter will mitigate the issue for some users and will restore read and write access to your Parity Storage Spaces. Note Files that have already had issues may need to be recovered.  See the “Recover files” section below for more information. If you try to run these when having Simple Storage Spaces or Mirror Storage Spaces, It may show Could not be run message for the troubleshooter. It is expected as Simple Storage Spaces, and Mirror Storage Spaces are not affected by this issue. That said, if the troubleshooter still gives you a problem, the only way out is the manual method. You need to run the below-mentioned command in PowerShell with Admin privileges to make the storage space as read-only.

How to Recover files from Parity Storage spaces

If you are able to access your Parity Storage Spaces and it does not show it as RAW in the disk manager, then you can use the WinFR tool to recover lost files. Its an official file recovery tool from Windows Team. You will have to use the segment mode with the undelete files flag to recover files from the NTFS volumes. The default mode will recover all possible files, but if you are concerned about specific file types, then you can use the /n *.docx to recovery only those files types. Here is the full set of commands and options

/r – Segment mode (NTFS only, recovery using file record segments)/n – Filter search (default or segment mode, wildcards allowed, trailing \ for folder)/x – Signature mode (recovery using file headers)/y:<type(s)> – Recover specific extension groups (signature mode only, comma separated)/# – Displays signature mode extension groups and file types/? – Help text/! – Display advanced features

Recovering files from non-NTFS file systems are only supported in signature mode.

How to Recover Files in case of RAW in Disk Manager

If the ReFS volume shows as RAW in Disk Manager, you can use the ReFSUtil command to recover data to a volume of equivalent size. There are two modes, and we suggest you start with quick and then try full. The tool is included in Windows and Windows Server. It attempts to diagnose heavily damaged ReFS volumes, identify remaining files, and copy those files to another volume.

Perform Quick recovery:

In an elevated command prompt For example

Perform Full Recovery

In an elevated command prompt For example: It is good to see that Microsoft has been working ion bring new solutions for those who are facing the Parity Storage Spaces Issue after updating to Windows 10. These troubleshooters can help in resolving the problem by a bit, if not all.