Issue with Secure Boot DBX update (KB4575994)

[Mark-LANL]

I am currently not able to get the command to load the content.bin file. Based on the error, the cmdlet helps suggests there is something wrong with the signature file. I have downloaded all three from https://uefi.org/revocationlistfile.PS C:\temp\BootHole> Set-SecureBootUEFI -Name dbx -ContentFilePath .\dbx_april2021\content.bin -SignedFilePath .\dbx_april2021\signature.p7 -Time 2011-11-01T13:30:00Z -AppendWrite Set-SecureBootUEFI : Incorrect authentication data: 0xC0000022 At line:1 char:1 + Set-SecureBootUEFI -Name dbx -ContentFilePath .\dbx_april2021\content ... + ~~~~~~~~~~~~~~~~~~~

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