Unable to Insatll SplitDbxcontent using Powershell

Question

We are trying to update DbxContent on Windows. But we are facing this issue- ![228891-image.png][1] [1]: /api/attachments/228891-image.png?platform=QnA we have followed below link- https://support.microsoft.com/en-us/topic/microsoft-guidance-for-applying-secure-boot-dbx-update-kb4575994-e3b9e4cb-a330-b3ba-a602-15083965d9ca https://www.powershellgallery.com/packages/SplitDbxContent/1.0