Kali Linux Storage problem

HI,

It has been a while since I installed Linux VM on virtualbox. I have chosen both Dynamically allocated, and fixed hard disk options. Both of which result in seemingly normal process and length it takes to create the drive. But inside the VM the machine does not recognize the 19gb size (or anything even remotely close to it).
What am I doing wrong?

Please help.

I didn't find the right solution from the Internet.

References:
forums.virtualbox.org/viewtopic.php?f=1&t=85641
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Thanks!