Let's say we have 64GB of Dynamically Expanding VHDX. After installing the OS, the "dynamically initialized" space is something around 10GB. Now, I know that I'm gonna need about 25GB more space - e.g. a total of 35GB.
QUESTION: How can I force the initialization of either part (e.g. the 35G) or the rest of the VHDX file?
MOTIVE: When the virtualized system undergo some additional software installation, the process is slower, because in addition to installing the files, the VHDX needs to initialize the additional space. So I'd like to be able to initialize the space in advance and when the time comes, the installation of the additional software won't take forever.