Another recent discovery was that Apple have changed the traditional Apple Hardware Test for a more modern Apple Diagnostics program
Heres a little checklist for you to check that all your hardware is fully functional
If your Mac was released after June 2013, then you will need to run Apple Diagnostics
This is done by holding down D as you power on the machine
If your Mac was released before June 2013 and is running 10.7 or newer, then you will access a more traditional Apple Hardware Test
again, this is accessed by holding down D as you power on the machine
If your Mac is older, and won’t run 10.7 or above, then buy a new one 🙂
alternatively, Apple Hardware Test should be available on one of the original Mac OS installation disks
you’ve guessed it, insert the disk into the Mac, restart the machine and hold down D to access the Apple Hardware Test
If you’ve run the tests and you’ve got an error, then check out the following page for what the error code relates to
So, the major change in 10.8 is the default restrictions on which applications can be installed, which can prevent installation of apps such as Microsoft Office and some other popular software.
To enable software from all developers, make sure that under ‘Allow applications downloaded from:’ the button next to ‘Anywhere’ is selected
I’d also recommend ticking the box next to ‘Require password after sleep or screen saver begins’ to prevent unauthorised use of your machine
In the FileVault tab you have the option of encrypting your whole system drive, this is great on a laptop as it will prevent access before even booting & will disable Target Disk Mode, make sure you have a note of the Recovery Key that is displayed when enabling this, as this will be the only way you could access the machine if you forgot your password.
The Privacy tab now has info on which apps have requested access to your contacts, location service info, access to Facebook, and the option to send diagnostic data to Apple