New VM created as thin but occupying full disk space in datastore

Hello everybody and thanks for trying to help me.

I have created a new Windows 10 64b as a VM under a ESXi 6.7. I assigned 1 Tb disk with thin provisioned under a VMFS6 datastore.

But the VM occupies 1Tb in the datastore instead 10Gb of real space used (as if it was thick instead thin)

Do windows 10 support thin provisioned? I did something wrong of forget anything? How can I solve this?

Thank you