How to clean install OSX on a new rMB ?

[10-Dee-Q]

hi, so i just got my new M5 rMB today,
i've tested it in the store today to check things like, bad pixels, speakers, etc,
when i tested it on the store, i didn't use my apple ID , as i was in a little bit of hurry, so i just put it some random info and klick ok just to get to the OSX home scree.

anyway, i want to asked, how to clean install OSX on it to start a fresh ?

normally on older macbook , i always format the hard disk using disk utility, and then install the OSX through DVD-ROM, but since this rMB doesn't have a DVD-Rom, and also it doesn't comes with any OSX CD or USB, now i'm confused,

what i really want is just to clean format it and fresh install OSX on it , can anybody help me ?
thank you so much.

 

[Erdbeertorte]

Just hold cmd+R to boot from the recovery partition. There you can format the drive with Disk Utility and install OS X again.

Before doing that you should sign in to the App Store to connect the free pre-installed apps like iMovie, Garage Band, Numbers, Pages and Keynote with your Apple ID. Otherwise they are gone and not free anymore.

 

[viperGTS]

Can't you change your Apple ID without going through the entire recovery process? That seems a little excessive.

 

[Weaselboy]

so i just put it some random info and klick ok just to get to the OSX home scree.

So you just created a quick user account to check it out? You can get the same end result with a lot less trouble by logging in to that account and going to Users & Groups in System Preferences and adding a new, additional admin account. Then reboot and login to that new account and go back to Users & Groups and delete the first account.

Otherwise, if you clean install you will ned to reinstall all the apps like Erdbeertorte desrcibed. That is a lot of downloading for no real benefit IMO.