How to free up space in Docker on Windows?

Question

Windows

Good day.
The hard disk image created by Docker is 40 gigs. At the same time, I deleted all unused images and containers via the console (docker image rm, docker container rm), then I did prune all and deleted everything completely clean. In the console, they write to me that there is no data (no docker images, no docker ps -a containers), but the image in ProgramData \ DockerDesktop still weighs tens of gigabytes.
Where did the place go and how to free it without deleting this file physically?
Thanks in advance.

Answer 1

Looks like this is an old issue - https://github.com/docker/for-win/issues/244.
It arises due to the fact that containers are not launched under Windows, but under a Linux virtual machine. And how to reduce its disk is not easy.
Try optimize-vhd