7 Replies Latest reply: Sep 8, 2013 2:37 PM by tal1971
tal1971 Level 2 Level 2 (245 points)

Presently I have a Windows PC. Now with Windows, whichever version of Windows my pc has on it, if I later want to put a new OS onto it, I have to install the newer OS, but in doing that, it wipes the hard drive, which then means I have to reinstall all my program's and set them up to my liking etc.


I was wondering with Mac. If for example I had an iMac that had for example Snow Leopard, Lion. If I wanted to update the OS to Mountain Lion. Would upgrading to Moutain Lion wipe the hard drive and in doing that remove all my applications and anything else that had been installed?


Or is it possible with Mac to slip stream (for want of a better word) a newer OS onto the Mac and leave the applications etc that were previously installed intact and untouched?



Thanks in advance.

Windows Vista, iPad (3rd Gen) 32GB iPhone 4S 32GB