"ng" command not recognized as internal or external even when in PATH Environment Variable

I have this problem... for some reason yesterday all my commands (ng, npm, node, etc) were working fine, but at night I cleaned my PC from trash files and all that (my pc has Windows installed), and now It doesn't recognize the ng command, all the others are ok.

I checked the Environment Variables and its path is there, I checked the path, and it's all right, I re-installed with npm install -g angular-cli, nothing, I rebooted the computer and all that, but I just can't get ng working again :c

Thanks, hope to find a solution.

via Erick Rosas