Basically the PATH is the places the system should look for an executable when you run commands from the terminal or the command line. The path you posted above is a mac / linux style path which wont work since your on windows.
Unfourtantly im not on Windows. However, i just ran the CLI on my mac and it worked fine so there is no problem with the download.
I think this is possibly a permissions issue since you are trying to install directly into the root of your user folder. I would suggest making a folder called “sites” in the root of your C: drive (C:\sites) and storing your projects in subfolders in there instead. You can then point Wamp at the these folders, or whatever you are using as a local server.
Windows protects files under your user folder, i think the CLI is failing to save & unpack the zip file to that location because it does not have permission to do so (since it’s not you doing it).