Install WSL2 and Ubuntu

Run a real Linux inside Windows, with no virtual machine to manage.

1. In an administrator terminal:

   wsl --install

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2. Restart if prompted, then create your Linux username the first time you launch Ubuntu.
3. See the available distributions and install another one:

   wsl --list --online
   wsl --install -d Debian

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4. Check the version (should show 2) and update WSL:

   wsl -l -v
   wsl --update

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5. Inside Ubuntu, update the packages:

   sudo apt update && sudo apt upgrade -y

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