powershell set wsl 2

C++
wsl.exe --set-version Ubuntu 2dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart
wsl --list --verbose
wsl --set-version <distribution name> <versionNumber>
dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart

Source

Also in C++: