Windows10 Pro
Use WSL2 as backend for Docker Desktop for Windows
https://hub.docker.com/editions/community/docker-ce-desktop-windows/
You should see a checkbox saying "Enable WSL 2 Windows Features" "Enable Hyper-V Windows Features" appears, Unable to install Docker with backend specified in WSL2. .. ..
wsl
WSL2 is running on
wsl -l -v
  NAME      STATE           VERSION
* Ubuntu    Running         2
I get it. .. ..
Recalling that the OS version was 1909, https://docs.docker.com/docker-for-windows/wsl/ → 2004 or above is a prerequisite Souikotoka
It has not come down with Windows Update, so update manually https://www.microsoft.com/ja-jp/software-download/windows10 from here.
After updating, when you start Docker installation and install it, It came out safely as "Enable WSL 2 Windows Features". I proceeded as it was and was able to install it.
 wsl -l -v
  NAME                   STATE           VERSION
* Ubuntu                 Stopped         2
  docker-desktop         Running         2
  docker-desktop-data    Running         2
https://qiita.com/yoichiwo7/items/e3e13b6fe2f32c4c6120 Just in case, I tuned the memory like this.
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