The Windows Subsystem for Linux optional component is not enabled. Please enable it and try again. See https://aka.ms/wslinstall code example

Example 1: The Windows Subsystem for Linux optional component is not enabled.

dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart

Example 2: ubuntu wsl windows 10

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux