Will I need to reinstall everything?

Discussion in 'OS X Mountain Lion (10.8)' started by marty1990, Jul 14, 2012.

  1. marty1990 macrumors 6502

    Nov 25, 2011
    Having only had a Mac since November, I've never had to upgrade the OS. Since Mountain Lion is coming out this month, or so I've heard, I'm going to want to upgrade.

    When I was on Windows I used to have to do a reformat, install the latest OS and then reinstall everything. Is that the case with OS X? There's some apps I have that came preloaded on my Mac - I bought it from a different supplier over Apple - and I don't have the serial numbers any more, and don't want to lose the software.

    How will installing Mountain Lion be?
  2. danb77 macrumors 6502

    Sep 4, 2007
    The easiest OS upgrade you have done in your life. Will take 25 minutes or so, will preserve all apps and settings, and "just work".

    People on this forum talk about clean installs, but this is totally unnecessary in 99% of cases!
  3. ps3zocker macrumors regular

    May 3, 2012
    You just go to the Mac App Store, buy & download Mountain Lion and it upgrades your system. No format and reinstallation needed ;)
  4. Bobby.e macrumors 6502

    Mar 11, 2012
    You don't have to format windows when upgrading. Especially if you buy the upgrade version. However you can just upgrade. No need to format unless you want a clean install.

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