Does It Help To Do A Clean Install of OSX Upon Acquisition Of A New Mac?

Discussion in 'macOS' started by OneBlueFire, Mar 13, 2009.

  1. OneBlueFire macrumors member


    Oct 12, 2008
    Manila, Philippines
    I've been reading alot of articles and threads that say one should do a clean install of OSX using the DVDs that came with it immediately after acquiring it and before using and installing any applications on it.

    Does this really help in any way?

    Is there really a difference between the pre-installed OSX and the OSX that's on the DVDs that come with it?

    If there're differences, what are they and how can it make your machine run better?
  2. edesignuk Moderator emeritus


    Mar 25, 2002
    London, England
    Only difference really is that you get to pick what you install (you can scrap GB's worth of printer drivers and languages from your install). Plus you can get rid of any free trial crud Apple might have decided to bestow upon you with their factory install.
  3. Cuckoo macrumors 6502

    May 2, 2003
    The Netherlands - Utrecht
    i make it a point formatting every new mac!

    apple stashes a lot of not quite so free as it seems stuff
  4. zen macrumors 68000


    Jun 26, 2003
    You may as well, as you can strip out the printer drivers, language options, etc etc, which as edesignuk says will save you several GB of space. Plus you can ditch other stuff you might not ever want (Garageband, iMovie, etc etc). All gives you a nice spacious HDD.
  5. OneBlueFire thread starter macrumors member


    Oct 12, 2008
    Manila, Philippines
    Ok, so it's really just about hard drive space and doesn't change performance in any way.

    I guess what I read about how a Clean Install can "brighten" dim LCD displays is a myth then... =)

    Thanks for clearing that up guys!
  6. Roy Hobbs macrumors 68000

    Roy Hobbs

    Apr 29, 2005
    brighten a dim LCD, thats ridiculous
  7. ksmith80209 macrumors 6502a

    Aug 15, 2007
    The "brighten a dim LCD" was referring to the 17" MBPs displayed in the stores which are imaged using a standard Apple profile used for all display models. By re-installing, you end up with the correct image/profile for the 17" display - however, this shouldn't be an issue for a purchased machine - just the floor models.
  8. MisterMe macrumors G4


    Jul 17, 2002
    Reinstalling the OS on a brand new Mac is a Windows solution to a Windows problem. The dirty little secret about name brand Windows computers is that their business model is very similar to magazines and newspapers. They are supported by advertising rather than the purchase price. All of that crapware on your new Dell paid for your new computer.

    Macs are the opposite. The third-party software preinstalled on your Mac was probably paid for by Apple. The developer has his money. The software is not going to turn your computing experience into a Living Hell in a few weeks. If you have demoware preinstalled on your new Mac, then it will behave just like the demo versions of any other software that you download for yourself.

    Bottomline: Removing preinstalled software serves exactly one good purpose. It frees up a little space on your hard drive.

    As to the reliability question--the software preinstalled on your new Mac was installed under controlled factory conditions. When you reformat and install the software, the software is installed under uncontrolled office or home conditions. The chances of a mishap under either conditions are very small. That said, the chances that you will have a mishap in your bedroom are substantially greater than those of a mishap at Apple's factory.
  9. OneBlueFire thread starter macrumors member


    Oct 12, 2008
    Manila, Philippines
    To be honest though (I know you're gonna hate me for going against the OSX EULA), but when I bought the retail version of Leopard a few years ago, I installed it on a friend's mac that was running Tiger. Before installation, his LCD was outrageously dim even if it was set to the highest setting. Using it in a bright location was such a chore. After installing Leopard, the brightness increased DRAMATICALLY.

    I guess that's more of corrupted LCD profiles that were fixed after installing Leopard I guess... Do any of you have insights on this or similar experiences?
  10. Saladinos macrumors 68000


    Feb 26, 2008
    I thought the only demoware on new Macs was Office, which is part of an agreement between MS and Apple so MS will keep making it.

    When I bought my Santa Rosa Blackbook, Office was the only trialware IIRC. I quickly uninstalled it and put iWork on.

    Also, while trialware does subsidise the computer, the purchase price already covers it. It's just that companies like Dell realised that they're not taking advantage of all the advertising space available to them, and tried to make a bit extra out of it, even at the expense of the user experience. Hence the trialware and the stickers. Apple don't share that philosophy.
  11. KingYaba macrumors 68040


    Aug 7, 2005
    Up the irons
    I'm slightly on the paranoid side of life. I'd reformat and reinstall if I purchased a Mac from an individual. Is this necessary? No but what if this seller installed that infamous pirated copy of iLife... see what I mean?

    New Mac from the store? Na... I can trash the printer drivers folder in a few seconds and uninstall bundled applications if need be.
  12. Lesser Evets macrumors 68040

    Lesser Evets

    Jan 7, 2006
    It is. I think the above poster is more of a PC user, where you have tons and tons of crazy crap from all sorts of companies on the new computers. Ditch Office, install iWork, perfect.

    You don't need a whole new reinstall, but if you do it, all you are wasting is time and peace of mind while freeing up some HD space which can be freed up without reinstall.
  13. 11800506 macrumors 65816


    Oct 31, 2007
    Washington D.C. Area
    On all of the recent Macs I've bought there haven't been trial versions of office. I think older machines used to have that, but all my recent machines haven't.
  14. BittenApple macrumors 6502a


    Nov 29, 2008
    Yup, newer macs dont come with Office Trialware.

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