One of the best features introduced in Lion (OS X 10.7), and available on every version of OS X since, is OS X Recovery. The OS X installer creates an invisible, bootable, 650MB partition—a portion of ...

I need to replace the internal drive in an iMac (I've done this before - on this iMac - without any troubles) but this time (in a dry run) I can't get the iMac to boot from an external recovery ...

If you see an error message A required drive partition is missing while trying to reset your PC then this post will help you. Reset this PC is a handy feature in ...