Free Antivirus for Mac OS X 10.9

When installing OS X 10.9 over Leopard, there are a few things to keep in mind. First, make sure you have the right to do so. If that isn't an option for you, consider purchasing Snow Leopard for $20 and installing it first, then upgrading to Mavericks when available.

If you have a Mavericks-compatible Mac that's still running Leopard (OS X 10.5), your easiest option is to upgrade directly to Mavericks.

To check your Mac's specs, you can use the About This Mac window in Lion and Mountain Lion, or Mactracker for Snow Leopard users. Additionally, you may want to free up some drive space using tools like WhatSize or GrandPerspective to help identify big files that can be deleted.

Apple recommends having at least 8GB of free space on your Mac's drive to install a major OS X update, but it's recommended to aim for 15-20GB. The Mavericks installer itself is 5.3GB in size, and you'll need some room for temporary files.

When upgrading your RAM, make sure to get reputable vendors that guarantee their products are compatible with Macs. Some third-party RAM may cause problems when installing Mavericks. If you have only 2GB installed (especially if it's just 1GB), consider a hardware upgrade before installing Mavericks.

Here are the Mac models that can install Mavericks:

* MacBook Pro 17-inch (Late 2007 or newer)

* MacBook Pro 15-inch (Mid/Late 2007 or newer)

* MacBook Pro 13-inch (Mid-2009 or newer)

* MacBook (Late 2008 Aluminum, or Early 2009 or newer)

Additionally, Apple recommends having at least 2GB of RAM for a smooth experience, but you may want to consider 4GB or more for better results.

Free antivirus for mac os x 10.9