hello guys,i have macbook a1342 want to reset it but when i am trying to hold command+r or command+alt+r nothing happening, when i hold option key it show me just hdd, there is no disk utilitty, i want to reset system, there is 10.8.5 os installed , any1 got solution for this? sorry for my bad english hope u can undestand what i want to say , thank you for replay