The format used to define the hard disk partitions in computers with UEFI startup firmware. The GUID Partition Table (GPT) replaces the previous master boot record (MBR). GPT partitions can hold 18 ...

I'm afraid I've messed up my son's portable PC by trying to install Linux alongside Windows 8.1. I've set up many dual-boots in the past, but it turns out this new UEFI hardware is much trickier.

So...<br><br>I swapped in a 320GB WD Scorpio Black HD to my MacBook yesterday. I used Carbon Copy Cloner to image the internal HD to my WD drive in a USB enclosure ...