odd

Still have no answer to my questions, can someone from mod/staff answer please?

Hi,

i am unfamiliar with HWID spoofers and therefore have a few questions.
From what i have read on unknowncheats is that steam tracks your MAC adress and SSD/HDD serials.
With this spoofer i can change those?
Will it change it's physical MAC adress ?
Can it be run once for the change or does it need to be enabled all the time? 

Looking forward to a reply.