Windows 10 Storage Spaces issue confirmed by Microsoft

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Windows 10 version 2004 has an issue that prevents some PCs from accessing Storage Spaces.

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Surface Go 2 (Image credit: Daniel Rubino / Windows Central)

What you need to know

  • Microsoft confirmed an issue with Storage Spaces on PCs running the Windows 10 May 2020 Update.
  • The issue causes some PCs to not be able to access Storage Spaces.
  • There is currently no fix, but you can mark Storage Spaces as read only.

Microsoft recently confirmed an issue affecting some PCs running the Windows 10 May 2020 Update. The update causes some PCs to not be ableto access Storage Spaces. Additionally, some configurations cause a partition of Storage Spaces to show RAW in Disk Manager. Right now, there isn't a fix for the issue, but Microsoft is investigating it.

The issue was first spotted by Windows Latest and we reported on the issue earlier this week alongside several other problems with the Windows 10 May 2020 Update.

Microsoft does not specify how many PCs are affected by this issue. It does, however, specify that there is no workaround for the issue right now. Instead, you can mark Storage Spaces as read only. Here are the steps to do so, as outlined by Microsoft.

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  1. Select Start and type: powershell
  2. Right click or long press on Windows PowerShell and select Run as administrator.
  3. If prompted by a User Access Control dialog for Windows Powershell, select yes.
  4. Within the PowerShell dialog, type the following command and press enter: get-virtualdisk | ? WriteCacheSize -gt 0 | get-disk | set-disk -IsReadOnly $true
  5. Your Storage Spaces should now be set to read only, meaning you will not be able to write to them. Your device will still be usable, and any volume not seen as RAW should be readable.

Microsoft notes that it does not recommend running the chkdsk command on any device affected by this issue.

Sean Endicott
Sean Endicott
News Writer

Sean Endicott is a News Writer at Windows Central, where he covers Windows 11, Surface hardware, Microsoft 365, AI, apps, and the broader PC ecosystem. Since joining the site in 2017, he has written well over a thousand articles across the Microsoft landscape, covering breaking news, analysis, and feature reporting.

He writes Windows Wrap, a weekly column covering the biggest stories in Windows and the PC industry, and what they mean for the platform going forward.

Before joining Windows Central full-time, Sean worked in journalism and media production after earning a First Class degree in Broadcast Journalism from Nottingham Trent University. Outside of tech, he is an award-winning American football coach based in Nottingham, England, and was named BAFCA Youth Coach of the Year in 2024.