If you check the wiki and readme on AUTOMATIC1111/stable-diffusion-webui you would be forgiven for thinking that installing this will be easy. It's not! There are loads of prerequisites and potential issues that will confuse the hell out of you unless you are already very familiar with running Python ML packages.
We will install AUTOMATIC1111 into in C:\dev\stable-diffusion-webui
. But most of this probably applies to other stable diffusion installs too.
If you're thinking about using WSL, you probably stop thinking that. It seems like there's a bunch of issues that make this way more complicated than installing directly under Linux would be. I wasted several hours on this. You might have more luck but make sure to read the WSL install docs before you start!