Specifically, Microsoft has decided to remove the Linux kernel from the Windows OS image with WSL2. Instead, the company will deliver it to users’ machines using Windows Update. Users will be able to manually check for new kernel updates by clicking the “Check for Updates” button or by waiting for Windows to do this automatically.
“Our end goal is for this change to be seamless, where your Linux kernel is kept up to date without you needing to think about it. By default this will be handled entirely by Windows, just like regular updates on your machine,” said Microsoft Program Manager Craig Loewen in a blog post today outlining the coming change.
— ZDNet: Microsoft: WSL2’s Linux kernel will be delivered to Windows 10 users via Windows Update. https://www.zdnet.com/article/microsoft-wsl2s-linux-kernel-will-be-delivered-to-windows-10-users-via-windows-update/