NodeJS itself can be installed anywhere, as it's only the system variable paths it installs that point your console "node" commands in console that truly matter.

Wipe all of your folders, go grab github desktop, use that to download the folder, then right click on it in github desktop on the left hand side where it'll be listed after you add it, hit "open in powershell" then do the "npm install" command.

After that just whack your user and post privkey into the .env file after removing the .example off the end of it and start the beast with "node sniper.js"