Windows Defender Definitions not Updating

[DraughtDig69906]

Hi All,


I've got a PC in an SCCM environment which is not updating the Windows Defender definitions, Dism /Online /Cleanup-Image /RestoreHealth in Administrator CMD and is coming back with error code 0x800f0954. Incase you also need to know this is on Windows 10 version 1803.


Can anybody advise what would be the best way to fix this?


Thanks

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