Hi Riccardo,
According to the DSVM Windows 2019 documentation page, currently Gen2 SKUs are not supported. Standard_NC24ads_A100_v4 only supports Gen2, so you can't use Windows DSVM image, since both the Windows Server 2019 and 2022 images are Gen1.
Please try Data Science Virtual Machine - Ubuntu 20.04 instead since it is Gen2.
Please click Accept Answer and upvote if the above was useful.
Thanks.
-TP