How Can I Restore My iMac To Factory Default

[whirl]

I have just taken delivery of my new iMac 27 with a Fusion drive.

Although I have managed to restore my applications from a Time Machine backup some of them are not working.

I want to start again but not quite sure how to do it. I am guessing that I can re-download Mountain Lion from the App Store but again I am not sure if the OS will be installed onto the fusion drive like it was when it left the factory

Thanks

 

[AT06]

Just hold Command+R on boot and select to re-install ML (will download it over the Internet). There may be better ways to do it, but that's always worked for me

 

[simsaladimbamba]

• How to Clean Install OS X Mountain Lion
• How to Do a Clean Install of OS X Mountain Lion

 

[2012Tony2012]

To get a proper factory restore, Make sure during install that you select Disk Utility and erase the hard drive.

http://www.youtube.com/watch?v=yPmT5Xbb8p0

 

[whirl]

Just hold Command+R on boot and select to re-install ML (will download it over the Internet). There may be better ways to do it, but that's always worked for me

Will this then reinstall Mountain Lion back onto the Fusion drive ?

 

[XionCore]

Yes.

 

[AT06]

Will this then reinstall Mountain Lion back onto the Fusion drive ?

Yes it will