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Build 14931 sfc not working

Running Insider Preview on a 64 bit Pro machine. Couldn't get Store to open so ran sfc /scannow with the following result:

Microsoft Windows [Version 10.0.14931]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>sfc /scannow
Beginning system scan.  This process will take some time.
Beginning verification phase of system scan.
Verification 20% complete.
Windows Resource Protection could not perform the requested operation.
C:\WINDOWS\system32>

Any ideas?

I didn't try to open Store (no Internet connection), but always check sfc with new Builds to see if it's working. My 64-bit Win 10 Pro Build 14931 had EXACTLY the same result above. It's a BUG in System File Checker. Ran it before and after restart - failed at 20% both times. My CPU is AMD.

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This is a bug and has been reported many times which you can find other postings by searching this forum also in the feedback Hub just use sfc /scannow as the search title in the Feedback Hub and you can upvote the many postings.
I'm a unpaid independent Advisor/volunteer

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It's not just sfc that isn't working properly either:

Microsoft Windows [Version 10.0.14931]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>
C:\WINDOWS\system32>dism /online /cleanup-image /RestoreHealth
Deployment Image Servicing and Management tool
Version: 10.0.14931.1000
Image Version: 10.0.14931.1000
[==                         4.5%                           ]
Error: 1726
The remote procedure call failed.
The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log
C:\WINDOWS\system32>

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Last updated February 2, 2021 Views 97 Applies to: