The listed Apple tech spec for upgrading to OS X Mavericks is a minimum of 2GB of RAM. If you have 2007 or 2008 Mac and have never updated your memory before, you may only have 1GB of RAM in your machine. If you only have 1GB of RAM, you will have to upgrade to the minimum of 2GB before you can install Mavericks. To check how much RAM your Mac currently has, click on your Apple menu in the upper left-hand corner and click '.' The line that reads Memory will tell you if your Mac has the necessary 2GB of RAM or if you will need to upgrade before you can install Mavericks.

OS X Mavericks is a favorite of many Mac enthusiasts. So, if you're looking to update your OS to Mavericks, it's a great choice. Now, there are a lot of questions on Mac users' minds with a big OS X update. A clean install of macOS Sierra 10.12.3 from a USB Flash Drive takes a little less then 10 GB of space. If you do an in-place upgrade the Install macOS Sierra.app bundle takes a little less then 5 GB but can be deleted if after the upgrade it doesn't self-delete.

Although Apple's minimum requirement is 2GB, our experience has been that Mavericks is very memory intensive. For this reason, we believe users will see better performance with Mavericks if they upgrade to 4GB of memory at a minimum, with an even better performance with 6GB of memory in the machine. Quicken for mac 2011 download error 28.

Find out if your machine has been tested by Ramjet Labs to go beyond the Apple specification of 4GB, something we call. MacBook Air and Retina Models The MacBook Air and Retina Models of the MacBook Pro unfortunately come with memory soldered onto the board and cannot be user-upgraded after purchase, so what you currently have in these models is your maximum memory. However, it should be noted all Retina MacBook Pros come with either 8GB or 16GB of RAM, which should be more than enough to install Mavericks. Owners of these machines should have no concerns. Early MacBook Air 2GB Version The very earliest MacBook Air models that can upgrade to Mavericks (2008 and 2009 models) did come with the minimum requirement of 2GB of memory, but based on our expectations, may perform less than optimized. If you have already upgraded to Mountain Lion on your 2008 or 2009 MacBook Air, you should have a good idea of how your machine will run should you decide to upgrade to Mavericks.

Read on to find out about Mavericks and what it might mean for your Mac.

Drive Space: You'll need at least 8 GB of free drive space to install the new OS. This value doesn't represent the amount of free space you need to effectively run El Capitan, just the physical amount of room needed for the install process to complete. For those of you trying out OS X El Capitan as a virtual machine, or on a partition for testing, I recommend 16 GB as a bare minimum. This is enough to have the OS and all included applications installed, and still leave enough room for an additional app or three.

Apple have released a developer beta of their upcoming operating system named macOS High Sierra, which will be macOS 10.13. The name High Sierra continues on with their California landmarks with the name after a scenic CA region, it should be publicly available between September to November. Lucklily for most the new macOS High Sierra 10.13 will run on the same machines as its predecessor macOS Sierra 10.12. Apple had already dropped support for any models pre late 2009 for MacBook and iMac. And anything pre 2010 for MacBook Air, MacBook Pro, Mac Mini and Mac Pro. You’ll still require a 64bit Intel processor, 8GBs of free disk space – if upgrading, as appose to clean install min plus at least 2GB of RAM.