crwdns2934241:0crwdne2934241:0 najim

crwdns2934249:0crwdne2934249:0:

thax very much guys 
how do i reset the PMU& PRAM and hard ware check disk iam new on mac book so please help me thnx 

crwdns2915684:0crwdne2915684:0:

open