@Hugor
Thanks for your posting on Q&A.
Please follow the below steps to remove the LCU:
Run the below PowerShell script to get the package name:
DISM /online /get-packages
Run the below PowerShell script to uninstall the update:
dism /Online /Remove-Package /PackageName:Package_for_RollupFix~31bf3856ad364e35~amd64~~17763.3165.1.8
Best regards,
Rita
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