Issue with some Parity Storage Spaces after updating to Windows 10, version 2004 and Windows Server, version 2004

Last updated: August 14, 2020 9:30AM PST

Summary

If you are trying to update to Windows 10, version 2004, you might encounter an update compatibility hold and receive the message, "This PC can't upgrade to Windows 10. Your PC isn't supported yet on this version of Windows 10. No action is needed. Windows Update will offer this version of Windows 10 automatically once the issue has been resolved."

screenshot of safeguard hold dialog

Cause

Devices using Parity Storage Spaces might have issues using or accessing their Storage Spaces after updating to Windows 10, version 2004 (the May 2020 Update) and Windows Server, version 2004.  When using some configurations, partitions for Parity Storage Spaces might show as RAW in Disk Manager.

To safeguard your update experience, we have applied a compatibility hold on these devices from installing or being offered Windows 10, version 2004.

Note Simple Storage Spaces and Mirror Storage Spaces are not affected by this issue.

Workaround

There is currently no workaround to remove the safeguard hold.

Important: If you have already updated to Windows 10, version 2004 or Windows Server, version 2004 and are affected by this issue, please see KB4570719 for more information and workarounds.

 

Next Steps

This issue was resolved in KB4568831. and the safeguard hold has been removed as of August 13, 2020. Please note, if there are no other safeguards that affect your device, it can take up to 48 hours before the update to Windows 10, version 2004 or Windows Server, version 2004 is offered.

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