The use of Rosetta ended with OS X Snow Leopard as the Rosetta application was licensed to Apple, from a software company called Transitive, which got bought out, I believe, by IBM and Appe could no longer secure their rights to continue to use Rosetta in later versions of OS X.

I dont see what installing the complete System new has to do with anything at all.

As for losing data, you should be backing up on a regular basis.

If you have a good backup, then data loss shouldnt be an issue.

Then, use either OS X Time Machine app to backup your entire system to the external drive OR purchase, install and use a data cloning app, like CarbonCopyCloner or SuperDuper, to make an exact and bootable copy (clone) of your entire Macs internal hard drive.

This step is really needed in case something goes wrong with the install of the new OS or you simply do not like the new OS, you have a very easy wayprocedure to return your Mac to its former working state.

Then, determine if your Mac meets ALL minimum system install requirements.

Programs 10.6.8 Download Code Here

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 space 2 GB of RAM To install OS X 10.8 Mountain Lion, 10.9 Mavericks (currently unavailable) or OS X 10.10 Yosemite.you need one of these Macs: OS X 10.8 Mountain Lion purchased emailed download code here.

So, you would need to check to see if you have software on your Mac that maybe older than, say, 2006 or older.

If you have any commercial antivirus installed andor hard drive cleaning apps installed on your Mac, like MacKeeper, CleanMyMac, TuneUpMyMac, MacCleanse, etc.

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.

Programs 10.6.8 Password And If

Once you have determined all of this, you should be able to find the latest versions of OS X by clicking on the Mac App Store icon in the OS X Dock and then login to the Mac App Store using your Apple ID and password and if you purchased a download code, input that code.

You can then begin the download and installation process of installing the newer versions of OS X from the Mac App Store.

I strongly suggest you NOT try to get it from non-Apple sources.

Barry.

Programs For Mac Osx 10.6.8