Check if your Mac is 64 bit
Here’s an easy way to determine whether or not your Mac is 64 bit capable. Open Terminal.app, which is located in /Applications/Utilities and type in sysctl hw |grep 64bit. If your machine is 64 bit capable, the result will be hw.cpu64bit_capable: 1 If your machine is not 64 bit capable, the result will be hw.cpu64bit_capable: [...]