Recover key2?

i got a new asus laptop it had win 10 pre installed on it but it says i can go back to 7 on recovery
sence u get a new key n 10 does that mean i can recover two keys
i ask both asus an xotic pc witch is where i purchased it to send me a win 7 recovery cd but they wasnt so helpfull i dont mind 10 after a little tweakn thanx reddit lol but i am a broke mo fu an could use the extrta key.. thank for anyone thoughts an time....