At first I want to modify my username in Win10. According to a blog I try to modify the registry. However, after that I can’t open the WSL any more. It seems that the WSL is disappeared.

And at last I install the Ubuntu 20.04 again, and get a totally new WSL. But now I have a question: where is the old Ubuntu? Is it automatically freed or unregistered from my disk memory?

I want to find the exact directory of my old WSL. And then I’ll try to delete it explicitly.