All projects? What about the ones in my signature?
Your system is quite old (that CPU is from 2012). The integrated GPU it comes with, the Intel® HD Graphics 4000 no longer works with VEGAS. What is your GPU? "tarjetas gráficas dedicadas" doesn't tell me much.
I'd recommend using an old version of VEGAS until you get a more modern computer system.
Una última consulta: si cambio de equipo, me sirve la misma licencia de vegas pro 20?
One last question: if I change teams, will the same vegas pro 20 license work for me?
Assuming that you intended '(computer) equipment' rather than the Google translation of 'teams', the answer is yes. In any event, you can always go to your MAGIX My Account and under My Products de-activate any current activations for Vegas Pro to free up all available activation slots.