Windows 10 version 2004 encountered the issue where access to parity storage was an issue. Microsoft suggested making the storage space read-only, so that the data is not affected. Now the Windows team has released Windows troubleshooters for parity repositories problem. You can use them to automatically change system settings to resolve the problem and also make sure to avoid further data corruption.
Note Simple storage spaces and mirror storage spaces are not affected by this problem. Additionally, the troubleshooter appears only when you have a problem and the operating system has attempted to recover. Make sure to check if it was run automatically.
Windows troubleshooters for parity repositories
Microsoft has already warned that reverting to the previous version or running the CHKDSK command and any attempt to resolve the issue not recommended by them could result in data corruption. You can follow the manual method or download the troubleshooters from the Windows team and try. There is currently no complete mitigation for all scenarios of this problem.
- Open Windows 10 settings
- Go to Update & Security> Troubleshoot
- Click on the View history link in the Troubleshoot section
- If the troubleshooter tried to run, you will see a critical convenience store or recommended convenience store with the title and description of the table below. The notes column explains what the troubleshooter does.
|Hardware and Device Troubleshooting Tool||Automatically change system settings to resolve a problem with your device.||This troubleshooter will prevent data problems on your storage spaces. Once you run the troubleshooter, you will no longer be able to write to your storage.|
|Storage space troubleshooting||Data corruption has been detected in your parity storage. This troubleshooter takes steps to prevent further corruption. It also restores write access if the space was previously marked read-only. For more information and recommended actions, please see the link below.||This troubleshooter will alleviate the problem for some users and restore read and write access to your parity storage spaces.|
This troubleshooter will alleviate the problem for some users and restore read and write access to your parity storage spaces.
Note Files that have already encountered problems may need to be recovered. See the “Recover files” section below for more information.
If you try to run them when you have simple storage spaces or mirror storage spaces, this may display Unable to execute message for the convenience store. Simple storage spaces and mirror storage spaces are not expected to be affected by this problem.
That said, if you still have a problem with the troubleshooter, the only solution is the manual method. You must run the command mentioned below in PowerShell with administrator privileges to make the storage space read-only.
VirtualDisk | ? ResiliencySettingName -eq Parity | Get-Disk | Set-Disk -IsReadOnly $true
How to Recover Files from Parity Storage Spaces
If you are able to access your parity storage spaces and it does not display it as RAW in the disk manager, you can use the WinFR tool to recover lost files. It is an official Windows team file recovery tool.
You will need to use segment mode with the file restore flag to recover files from NTFS volumes. The default mode will recover all possible files, but if you are concerned about specific file types, you can use the / n * .docx to recover only those file types. Here is the full set of commands and options
winfr source-drive: destination-folder [/switches]
- / r – Segment mode (NTFS only, recovery using file saving segments)
- / not
– Search by filter (default or segmented mode, wildcards allowed, tracking for the file)
- / x – Signature mode (retrieval using file headers)
- / y:
– Retrieve groups of specific extensions (signature mode only, separated by commas)
- / # – Displays extension groups and file types in signature mode
- /? – Help text
- /! – Show advanced features
Recovering files from non-NTFS file systems is only supported in signature mode.
How to recover files in case of RAW in Disk Manager
If the ReFS volume appears as GROSS in Disk manager, you can use the ReFSUtil command to recover data from a volume of equivalent size. There are two modes, and we suggest that you start with fast, then try it out completely. The tool is included in Windows and Windows Server. It attempts to diagnose badly damaged ReFS volumes, identify the remaining files, and copy these files to another volume.
Perform a quick recovery:
In an elevated command prompt
refsutil salvage -QA
refsutil salvage -QA E: F:SalvagedFiles
Perform a full recovery
In an elevated command prompt
refsutil salvage -FA
refsutil salvage -FA E: F:SalvagedFiles
It is good to see that Microsoft has been working to bring new solutions to those who are faced with the problem of parity storage space after updating to Windows 10. These problem solving utilities can help to solve the problem a bit, or all of them.