Using Powershell (see https://docs.microsoft.com/en-us/windows/wsl/install-win10 for more information)
Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
(see https://docs.microsoft.com/en-us/windows/wsl/wsl2-install )
dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart