OS X Mavericks cannot be installed on this computer

You can upgrade to Mavericks OS 10.9 for free IF you have one of the following Macs, with not less than 2GB of RAM, and at least 8GB of available space on your hard drive:

iMac (Mid-2007 or later)

MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)

MacBook Pro (13-inch, Mid-2009 or later), (15-inch, Mid/Late 2007 or later), (17-inch, Late 2007 or later)

MacBook Air (Late 2008 or later)

Mac Mini (Early 2009 or later)

Mac Pro (Early 2008 or later)

Xserve (Early 2009)

iCloud system requirements:

http://support.apple.com/kb/ht4759

If you cannot run Mavericks you can purchase the code to use to download Lion from the App Store (Lion requires an Intel-based Mac with a Core 2 Duo, i3, i5, i7 or Xeon processor and 2GB of RAM, running the latest version of Snow Leopard):

http://store.apple.com/us/product/D6106Z/A/os-x-lion

or Mountain Lion:

http://store.apple.com/us/product/D6377Z/A/os-x-mountain-lion

MacBook Pro requires model 3.1 or higher to run Mavericks or Mountain Lion.

• MacBook Pro (Mid/Late 2007 or newer) model number 3,1 or higher

Check to make sure your applications are compatible. PowerPC applications are no longer supported after 10.6.

Application Compatibility

Applications Compatibility (2)

A MacBookPro2,1 is a Late 2006 model. The dates are for model introduction.

My cousin have just purchased a brand new MacBook Pro with Retina and he is using OS X in it and some hairstyle video tutorials web pages like Youtube and Dailymotion but these video sites are not opening properly. Is it a common issue or only with my MacBook Pro with Retina, for example this men hairstyle web blog i.e specifically showing some hairstyle embed video tutorials are not opening properly. please check this site and let me know the results so I could help him out from this irritating problem. Thanks in advance...😊

Well, I went to the web site and didn't find any links that led to videos. But, my best guess, not having any specific details, is that he doesn't have Adobe's Flash player installed.

If that is the case, he can get that from Adobe's web site: https://get.adobe.com/flashplayer/otherversions/

You might want to consider starting a new discussion. Since this one is marked solved, less people are likely to look at it. A new post would be much more visible. You can link to this one. Post in the OS community for the OS version they are using.

If they install Flash, go to Safari/Preferences/Security and make sure Allow Plug-ins is checked. Then click Plug-in Settings and make sure Flash is enabled.