Updating 10 4 8
OS X Lion system requirements Purchased emailed download code here. To use Lion, make sure your computer has the following: An Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor Mac OS X v10.6.6 or later to install via the Mac App Store (v10.6.8 recommended)7 GB of available disk space2 GB of RAMTo install OS X 10.8 Mountain Lion, 10.9 Mavericks (currently unavailable) or OS X 10.10 need one of these Macs: OS X 10.8 Mountain Lion purchased emailed download code here.i Mac (Mid-2007 or later)Mac Book (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)Mac Book Pro (13-inch, Mid-2009 or later), Mac Book Pro (15-inch or 17-inch, Mid/Late 2007 or later)Mac Book Air (Late 2008 or later)Mac mini (Early 2009 or later)Mac Pro (Early 2008 or later)Xserve (Early 2009)Your Mac also needs: OS X Mountain Lion, Lion, or Snow Leopard v10.6.8 already installed2 GB or more of memory (I strongly advise, at least, 4 GBs of RAM or more)8 GB or more of available space Next, If you run any older Mac software from the earlier Power PC Macs, then none of this software will work with the newer OS X versions (10.7 and onward).
If you don't have the last update of i Photo, any other version of i Photo will no longer work with Yosemite. Does that mean I can't run OS X 10.8 Mountain Lion? Not sure what specs are relevant but it's a white, early 2008, Mac Book 4.1, model MB402LL/A. The reason I ask is, it's running poorly, VERY poorly. And I just can't afford a new one or an expensive tech 'overhaul'.Is there any possibility to update the i Mac to MAvericks 10.9 without loosing any Data and without installing the complete System new ?Thanks for your Help Rottman57If you did not previously purchase Mavericks from the app store, then you can not upgrade to Mavericks at all any more. I don't see what "installing the complete System new" has to do with anything at all...now would be a good time to completely uninstall this apps by doing a Google search to learn how to properly uninstall these types of apps.These types of apps will only cause your Mac issues later after the install of the new OS X version and you will have to completely uninstall these types of apps later.