3 Replies Latest reply: Nov 10, 2011 5:38 PM by Linc Davis
jamesfromshropshire Level 1 Level 1 (0 points)

I have installed Lion over the top of Snow Leopard on my Mac Book Air, but I am having a lot of trouble with various apps and would like to do a disk format and clean re-install.


Reading around the subject, it seems like there are various ways to do this, but the best would seem to be this (as discussed here: http://support.apple.com/kb/HT4718):


- Boot into Recovery HD using command+R

- Choose Disk Utility and reformat the Mac main drive

- Exit Disk Utility and then choose Reinstall OS X Lion - am I right in thinking that it will now need to go and download the Lion installer from the internet (which obviously could take some time)?

- Once complete, can I restore the things I need from the most recent Time Machine backup? I will do one just before I start the process. I also plan to do a manual copy of the data files I need.


If anyone has done this before and can confirm the above process, that would be great...


Many thanks.

MacBook Air, Mac OS X (10.7.2)