you may also want to add it using cmd in admin mode (I had the same exact problem and this solution worked for me) to do this only right click the "comand prompt" and click "run as administrator" then the only thing you have to do is paste or write the direction in wich the COMDL...

THANk MAN!! I was searching ALL de web for an answer on what can I do for this "beats" to fork for me cause I badly want to expirence this....

THANKs\!!